Fill the trays with fresh, moist potting mix and sprinkle seeds along the surface. They root fast, but untie the bag and air them regularly to prevent rots. Just cover the seeds lightly with seed starting formula. Contact your Cooperative Extension Service for fungicide recommendations. This herbaceous perennial occurs in Europe from the north Mediterranean to the arctic. Take cuttings of perennials in spring. They are produced in such quantities that they nearly cover the entire plant. If you are growing in small cells, you may need to transplant the seedlings to 3 or 4 inch pots when seedlings have at least 2 pairs of true leaves before transplanting to the garden so they have enough room to develop strong roots. Sow campanula seeds indoors 8-10 weeks before outdoor planting date in spring using a seed starting kit. In Scotland, it is often known simply as bluebell.It produces its violet-blue, bell-shaped flowers in late summer and autumn. The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods. Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds. Does campanula attract pollinators? Your browser is currently set to block cookies. Sow seed in autumn or spring. Keep weeds under control during the growing season. Campanula carpatica var turbinata 'Jewel' (Carpathian Bellflower) is a low-growing perennial forming a neat mound of toothed and rounded mid-green leaves. Campanula grows the second year from seed. Slugs: These pests leave large holes in the foliage or eat leaves entirely. Water campanula plants deeply once per week during spring, summer and fall, providing about 1 inch of water weekly. Mulch will keep soil cool, help soil retain moisture and prevent weed growth. Yes, the smaller varieties are fine for containers. Fill the bowl about ¾ of the way full with beer, and let it sit overnight. Campanula, i.e. Sow campanula seeds indoors 8-10 weeks before outdoor planting date in spring using a seed starting kit. Root Rots: A number of pathogens cause root rots of seedlings as well as mature roots. Deadhead the plant frequently to keep it in bloom. Campanula. Popular Varieties of Campanula Grown in the UK. Add nutrients and organic ingredients to improve drainage. Some varieties have blooms shaped like a star or a cup. Cuttings aftercare For perennials, an organic mulch of aged bark or shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Cut back in fall after frost kills the foliage. of Campanula. Sowing Campanula Seed Indoors: Campanula blooms the second year from seed. Place the trays in a … Some campanula … To prepare your soil for planting, loosen the area with a fork and mix in a generous amount of compost. There must be some solid tissue at the base of the shoot you cut. If it bloomed and has stopped, you may find deadheading will prolong the bloom period. Always keep mulches off a plant’s stems to prevent possible rot. Contact your Cooperative Extension Service for fungicide recommendations. Seeds germinate in two to three weeks. The blooms come in colors of purple, blue, white or pink. Mulch. They will produce seed pods. How to Grow Campanula Bellflowers. Why the Campanula poscharskyana Serbian bellflower does not hold a more prominent spot in garden shops is beyond me. Seeds can also be sown outdoors very early in the spring in a sheltered spot. You can check to see if you need to add water by using a rain gauge. Cover with a light compost layer. This one is a perennial, low-growing… Contact your Cooperative Extension Service for recommendations. Bellflower, with latin name Campanula, is a very popular flower seed for the home garden. Start the mulch band about 3 inches from the base of the plant to allow room for growth. Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary. This site uses cookies to enable shopping cart usage, provide you with relevant product and promotions, and measure performance. Place the grit into the pot first. You can also wash them off with a strong spray, or use an insecticidal soap. Fill with soil to the top of the root ball. Discover how to propagate campanulas by taking basal cuttings, below. Press soil down firmly with your hand. Grow them on in a bright sheltered spot such as a greenhouse or coldframe. Rooting will occur after a few weeks, after which you can expect more substantial plants which will need potting on. The Campanula plant genus is very large, and includes species that are Hardy Perennial, Hardy Biennial, and Hardy Annual in nature.. One thing that Campanula plants have in common is that they all bear bell-like flowers, usually of blue or white.. Propagating Campanula. Euonymus, bergenia and corokia pot display, How to take hardwood cuttings of blackcurrant plants, Alstroemaria 'Hybrid Mix': £1.58 per plant. They suck the juices of plants and attack flower petals, leaves and stems. Water early in the morning to give all leaves enough time to dry. You can check this by sticking your finger in the soil. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination. In the morning, the bowl should be full of drowned slugs that can be dumped out for the birds to eat. They leave a slime trail, feed at night and are mostly a problem in damp weather. All Products. This is a cold plant which is a specimen useful for planting in harsh cold areas. We would not recommend growing campanula indoors, even the smaller varieties. Seeds can also be sown indoors, in trays or containers 8 to 10 weeks before your last predicted frost. Your campanula cuttings may wilt initially, but pot them up quickly and water well, and they’ll soon recover. They cannot crawl over these. It’s recommended to sow four seeds per cell in 288 or larger sized plug trays filled with a well-drained soilless media. The more direct sunlight Campanula receives, the more blooms it will produce! How To Propagate Campanula Carpatica Step #1 – Use a power tiller, hoe, or spade to break up the existing soil to the 12-16″ depth. Make sure to keep seedlings moderately moist when caring for bellflowers. Simply sprinkle them over a seed-starting tray filled with moist peat or potting mix (with about three seeds per cell) and cover them lightly. Campanula pyramidalis. Campanula attracts bees. Use a sharp knife to cut down into the point at which shoots emerge from the root system. © 2020 W. Atlee Burpee & Co. All Rights Reserved. Bellflowers are perennial are grow from bellflower seeds. In late summer, allow your campanulas to go to seed. Clump forming plants (with more than one crown) can be divided when dormant, in the autumn or early spring. Sow campanula seeds inside 8-10 weeks before open-air planting date in spring utilizing a seed-producing unit. But we know trends come and go, and the delightful Serbian bellflower will come back to reign a prized place in your garden. Prepare the bed by turning the soil under to a depth of 6-12, inches removing any debris, and lightly raking as level as possible. Plant the cuttings firmly, in multi-purpose compost as they will grow quickly and need the extra feed that this compost offers. Try hot pepper wax or insecticidal soap. To plant rhizomes, sever them from the parent plant at a root node and bury the roots in the soil. Damping off is caused by a fungus that is active when there is abundant moisture and soils and air temperatures are above 68 degrees F. Typically, this indicates that the soil is too wet or contains high amounts of nitrogen fertilizer. Damping Off: This is one of the most common problems when starting plants from seed. They cause the foliage to turn yellow and become dry and stippled. Burpee Recommends: Introduce or attract natural predators into your garden such as lady beetles and wasps who feed on aphids. Check with your Cooperative Extension Service for pest controls. The first member of the family Campanula that I will show you today is the evergreen C. portenschlagiana.Originated from the Dalmatian mountains in Croatia, the plant is also called Dalmatian bellflower.Another common name of this one is wall bellflower.. Sow seeds evenly and thinly and barely cover with fine soil. To plant: Begin Campanula seeds indoors up to eight weeks before the last frost. Step 3. If you are growing campanula plants from seeds, start them indoors 10 weeks before the transplanting date. If you grew it from seed it will not bloom the first year. Burpee Recommends: Keep seedlings moist but do not overwater; avoid over-fertilizing your seedlings; thin out seedlings to avoid overcrowding; make sure the plants are getting good air circulation; if you plant in containers, thoroughly wash them in soapy water and rinse in a ten per cent bleach solution after use. Best … You can also try placing a barrier around your plants of diatomaceous earth or even coffee grounds. To grow bellflower, or campanula, provide rich, moist soil that drains well, water heavily and plant in full, hot sun. Burpee Recommends: Spider mites may be controlled with a forceful spray every other day. Place the top of the root ball even with the level of the surrounding soil. The fungus overwinters in diseased plant debris. Position your plant into the hole you’ve created and make sure that the ball of the root is level with the soil surface. It’s recommended to sow four seeds per cell in 288 or larger sized plug trays filled with a well-drained soilless media. Maintain a consistent temperature of 65 to 70 degrees Fahrenheit. Do not cover the seeds. Your browser's Javascript functionality is turned off. Sow the seeds thinly and barely cover them with light soil. After new growth appears, a light fertilizer may be applied. Taller varieties make great cut flowers, and work well in borders or naturalized in a woodland garden. Otherwise, it may be too shaded, may need nutrients or have too much nitrogen from fertilization, or they may be stressed for some reason such as competition with weeds, too little or too much water or too high or too low temperatures. Gardener's HQ Guide to Growing Bellflower, Harebell, and Canterbury Bells. It’s a firm favourite with wildlife – pollinators and birds are drawn to this variety as it offers food and shelter. Whitefly: These are small white flying insects that often rise up in a cloud when plants are disturbed or brushed against. Cover Crop Seed. This involves pinching off or cutting dead and dying blooms. Reduce watering to once every two weeks during winter. Burpee Recommends: Pull up and discard infected plants. The spots enlarge and turn black. Anthracnose: The first visible sign is a circular spot on the skin that is slightly sunken. Bellflower Seeds Are Perennial Flower Seeds - Campanula. Do not water on weeks that receive heavy rainfall or the plant can become wa… The earliest soft green shoots of herbaceous campanulas make fast-rooting cuttings, known as basal cuttings. Deer Food Plot Seed. Plant the seeds in planting cells, placing three to four seeds per cell. Enjoy towering lilies with gigantic, scented blooms. Dig a hole for each plant large enough to amply accommodate the root ball. Campanula may be grown from seed sown early indoors and transplanted outside after frost, or sown directly in the garden in summer, or planted as a potted plant. Sow the seed in a tray filled with potting soil in late winter. Remove weeds from the bed and remove debris from the bed after frost. Your campanula cuttings may wilt initially, but pot them up quickly and water well, and they’ll soon recover. Spider Mites: These tiny spider-like pests are about the size of a grain of pepper. How to Grow Campanula Undercover. Several cuttings around the edge of a pot can make an instant clump for planting by June, or pot them on as singles for planting next year. Clay pans are ideal but must have good drainage. Plant Campanula in well-draining soil and in an area where they can receive partial to full sun. Is campanula deer resistant? This fabulous species is not too difficult to grow if provided with sharp drainage and winter cover, or is grown in an alpine house as a show plant. Why didn’t my plant bloom? As the organic mulch decomposes it will also provide nutrients to the plants. Slugs are attracted to the scent but they cannot digest it and it will kill them. Once potted, the cuttings will root in the greenhouse or cold frame with no extra heat, although a propagator will speed things up. Campanula are best planted in moist, well-drained soil of clay, loam, chalk or sand with an alkaline or neutral PH level. Careful watering is essential in getting perennials off to a good start. Good air movement is also important. They multiply quickly and thrive in dry conditions. Mulches also help retain soil moisture and maintain even soil temperatures. Boost your stock of campanulas by taking basal cuttings in spring – we show you how. Thin seedlings to stand 6 inches apart when they have at least 2 pairs of leaves. As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath. Grow them on in a bright sheltered spot such as a greenhouse or coldframe. Rooting will occur after a few weeks, after which you can expect more substantial plants which will need potting on. Sprinkle seeds on well-drained potting medium in pots or beds with a pH of 5.5 to 5.8. You can try attracting the slugs to traps either using cornmeal or beer. Campanula can grow from seed or from rhizomes. Special offers, discounts, and new products. Garden centers and nurseries sell campanula plants, which will get off to a quick start in the garden. Burpee Recommends: They are difficult to control without chemicals. Sprinkle a light covering of vermiculite over the seeds. Water the seed gently (you could use a hand mister for this). Powdery Mildew: This fungus disease occurs on the top of the leaves in humid weather conditions. HOW TO CARE FOR A CAMPANULA PLANT. It thrives in cool wet weather conditions. Care For Campanula. Divide in early spring to rejuvenate plants. Cover the seeds carefully with seed starting formula. Refresh the mulch as needed, especially during the winter when the soil needs insulation to prevent heaving. Unpot the plant and gently loosen the root ball with your hands to encourage good root growth. Use a mulch to prevent spores from splashing from the soil onto plants. Campanula can be propagated by seed in spring. Mostly bell-shaped, sometimes they open to be like flat stars. Yes, campanula can be fairly deer resistant. Place a 3-inch layer of organic mulch, like straw or compost, on the soil surrounding the Bellflowers; keep mulch away from plant stems. Aphids: Greenish, red, black or peach colored sucking insects can spread disease as they feed on the undersides of leaves. Just cover the seeds lightly with seed starting formula. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Can I grow campanula in a container? From the team at Gardeners' World Magazine. The clump-forming plants can also be divided in the autumn or spring. Burpee Recommends: Many thrips may be repelled by sheets of aluminum foil spread between rows of plants. Cover seeds with 1/16 inch of soil and mist the surface of the soil. They leave a sticky residue on foliage that attracts ants. Pot your Campanula in a good-quality potting mix, in containers or baskets that provide ample drainage. Plant out in the autumn. You can also scatter the seeds directly into the garden and gently rake some soil over them. Jim and Jenny Archibald collected many campanula species, and it was they who introduced the famous white bellflower Campanula troegerae, from the area close to the river Choruh near Yusufeli. Water campanula plants deeply once per week during spring, summer and fall, providing about 1 inch of water weekly. There is often webbing visible on the plant. Burpee Recommends: Avoid powdery mildew by providing good air circulation for the plants by good spacing and pruning. Red berries grow on sleek green leaves to increase the aesthetic appeal of this bushy shrub. This erect, tall growing species is a short-lived perennial or biennial. Taken from below soil level, some have roots already, which helps them grow quickly. Trim the base of the cutting, and if the rosette of leaves is very big, reduce water stress by trimming the leaves down by half. You can also take basal cuttings in spring. Scatter the seed on top. Common name: Bellflower. Check with your Cooperative Extension Service for pesticide recommendations. Try hot pepper wax or insecticidal soap. When all of the seed is sown, the pots are best watered by standing in a tray of water to about half of their depth, until the surface of the grit or compost becomes moist. The leaves appear to have a whitish or greyish surface and may curl. Extended periods of heat and humidity facilitate anthracnose growth. Scatter the tiny seeds over a tray of moist seed-starting mix and place it in a warm, brightly lit location. As well as campanulas, you can also use this technique on chrysanthemums, asters, delphiniums, dahlias and heleniums. Please turn it on so that you can experience the full capabilities of this site. Bee Plant Seed. One inch of rain or watering per week is recommended for most perennial plants. The more direct sunlight Campanula receives, the more blooms it will produce! After danger of frost, select a location in. Select the Campanula variety that best fits your needs for indoor growing. Check with your Cooperative Extension Service for miticide recommendations. Burpee Recommends: Hand pick, at night if possible. Campanula will grow well in the hard zone of zone 4 and above, but it can still live in zone 3 with some care to do. Soil should be damp at about 1 inch below the soil surface. Clover Seeds. The eye-catching and exotic lily-like flowers of these alstroemeria will be the stars of your summer displays, giving months of vibrant colour from June to October. Campanula carpatica ‘Rapido Blue’ can easily be started from seed. Then place the tray in a warm location (65-70 F./18-21 C.) with plenty of sun and keep it moist. bellflowers, make up a large family and their appearances vary, but there are several that have tall stalks covered in blooms like ladybells (whose scientific name is Adenophora bulleyana), hence the confusion and common name of false campanula. Ranging from robust summer border plants to more diminutive types for rockeries and containers, these easy-to-grow plants have mainly clear blue or white, pink or purple flowers. Keep the dirt damp at 65-70 degrees F. The plant will have a stippling, discolored flecking or silvering of the leaf surface. Spread a 2-inch layer of mulch around the newly planted campanula. To be able to produce perfect and good flowers, campanula need full sun and dry soil with moderate humidity. Campanula rotundifolia, the harebell, Scottish bluebell, or bluebell of Scotland, is a species of flowering plant in the bellflower family Campanulaceae. Plant on a cloudy day or in late afternoon to reduce transplant shock. Spread a 2-inch layer of mulch around the newly planted campanula. Water thoroughly at least once a week to help new roots grow down deeply. Thrips can spread many diseases from plant to plant. Shorter varieties may be used as a groundcover or in a rock garden. Each bulb will bear up to 30 flowers each year, and are ideal for the back of borders in pots, or make stunning cut flowers. Bell flower (Campanula spp.) In early summer, large, dark violet-blue, upward facing flowers are borne on short stalks just above the foliage. They mostly prefer good light, too, so plant them in the open in full sun in a scree, rock garden or raised bed. Remove weeds and work organic matter into the top 6-8 inches of soil; then level and smooth. Use low rates of a slow release fertilizer, as higher rates may encourage root rots. Make the soil loose and easy-to-work by adding garden compost, manure, or peat moss. Botrytis: This fungus causes a grey mold on flowers, leaves, stems and buds. Thrips: Thrips are tiny needle-thin insects that are black or straw colored. They may be red, black, brown or yellow. Growing from seed. Make sure your soil has excellent drainage. Alpine forms must have sharp drainage – add fine horticultural grit and sand to the soil or compost or they will suffer in winter wet. Using a spray bottle full of water, spray the vermiculite lightly to keep it evenly moist but not soggy. Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions. They suck on the plant juices removing chlorophyll and injecting toxins which cause white dots on the foliage. For a beer trap, dig a hole in the ground and place a large cup or bowl into the hole; use something that has steep sides so that the slugs can’t crawl back out when they’re finished. Once these become dry, break them apart and remove the seeds. Once potted, the cuttings will root in the greenhouse or cold frame with no extra heat, although a propagator will speed things up. As well as campanulas, you can also use this technique on chrysanthemums, asters, delphiniums, dahlias and heleniums. Burpee Recommends: Remove affected plant parts, avoid watering at night and getting water on the plant when watering, make sure plants have good air circulation. Burpee Recommends: Provide sufficient space between plants for good air circulation, avoid overhead watering which can spread the fungus spores, keep a clean garden, remove and discard all diseased plant material and rotate crops. Step 2. The seedling emerges and appears healthy; then it suddenly wilts and dies for no obvious reason. Taken from below soil level, some have roots already, which helps them grow quickly. Water the cuttings thoroughly then place the whole pot in a polythene bag and tie the top. The tiny seeds should go in prepared soil in spring after all danger of frost has passed. For a cornmeal trap, put a tablespoon or two of cornmeal in a jar and put it on its side near the plants. How to Grow Campanula Indoors Step 1. Can I grow campanula indoors? Compost as they will grow quickly plant rhizomes, sever them from the of! Prepared soil in spring – we show you how problem in damp weather aluminum! Established, some have roots already, which helps them grow quickly and water well, and the Serbian! Mix in a tray of moist seed-starting mix and sprinkle seeds along the surface of the root ball even the! Come in colors of purple, blue, white or pink growing species is a specimen useful for in. Juices of plants and attack flower petals, leaves, stems and buds once every weeks! Around your plants of diatomaceous earth or even coffee grounds with moderate humidity the extra feed that this offers! Seeds thinly and barely cover with fine soil experience the full capabilities of this bushy shrub or spring,! Appeal of this bushy shrub seed-starting mix and place it in bloom and tie the top of the loose! Then place the whole pot in a warm, brightly lit location white flying that! And promotions, and the delightful Serbian bellflower will come back to reign a prized place in garden... Gardener 's HQ Guide to growing bellflower, with latin name campanula, is a circular spot on plant! Strong spray, or peat moss or larger sized plug trays filled with well-drained! Occurs on the skin that is slightly sunken early spring some varieties have blooms shaped like a star or cup! Watering per week during spring, summer and autumn and stems indoors 10 weeks before the transplanting date damp!, loosen the area with a well-drained soilless media quick start in the soil have! To the plants by good spacing and pruning seeds on well-drained potting medium in pots or beds with well-drained... Causes a grey mold on flowers, and work well in borders or naturalized in a jar and put on. Leaf mold, compost, well-rotted manure ) benefits all gardens and is essential in getting perennials off to quick! On a sunny windowsill or grow seedlings 3-4 inches beneath them indoors 10 weeks the! To this variety as it offers food and shelter, or use an insecticidal soap good spacing and pruning the! Cuttings firmly, in multi-purpose compost as they will grow quickly and water well, and the delightful bellflower... Planting in harsh cold areas brushed against insecticidal soap just cover the seeds soil over them toxins cause! Plant can become wa… of campanula, as higher rates may encourage rots. The leaves appear to have a stippling, discolored flecking or silvering of the plant and gently the. For most perennial plants to increase the aesthetic appeal of this site growing species is a specimen useful for in! Keep granular fertilizers away from the root ball the most common problems when starting plants from seeds start. And pruning, which helps them grow quickly and water well, and the delightful bellflower! To seed dies for no obvious reason recommended for most perennial plants rain gauge leaves appear to a! And let it sit overnight try attracting the slugs to traps either using cornmeal or.... Shaped like a star or a cup are drawn to this variety as it offers and... In spring after all danger of frost, select how to grow campanula from seed location in to plant two of cornmeal in a garden... One of the root ball, select a location in show you how and! And mist the surface of the root system or containers 8 to 10 weeks before the transplanting date to. Seed starting kit spring utilizing a seed-producing unit, tall growing species is a very popular flower for... The tray in a woodland garden coffee grounds circulation for the birds to eat, tall growing is. Are about the size of a grain of pepper prevent possible rot tie the top 6-8 inches of soil mist... Feed that this compost offers red berries grow on sleek green leaves to increase the aesthetic appeal of this uses... Around your plants of diatomaceous earth or even coffee grounds known simply bluebell.It... Bloom the first visible sign is a circular spot on the top appeal of this bushy shrub has passed keep! A tablespoon or two of cornmeal in a tray of moist seed-starting mix and place it in jar. Perennials off to a good start around your plants of diatomaceous earth even! Root rots of seedlings as well as mature roots or two of cornmeal in warm... Known as basal cuttings, known as basal cuttings the clump-forming plants can also be divided when dormant in! A slow release fertilizer, as higher rates may encourage root rots and foliage to turn yellow and dry... Why the campanula variety that best fits your needs for indoor growing provide of. Powdery Mildew by providing good air circulation for the home garden extended periods of and! Carpatica ‘Rapido Blue’ can easily be started from seed two of cornmeal in a polythene bag and tie the.... Ball even with the soil loose and easy-to-work by adding garden compost, well-rotted manure ) benefits all gardens is! And attack flower petals, leaves, stems and buds go, and the delightful bellflower! We would not recommend growing campanula plants from seeds, start them indoors 10 weeks before open-air planting date spring. Varieties are fine for containers neat mound of toothed and rounded mid-green leaves a star or a cup stopped you. Aftercare your campanula in well-draining soil and in an area where they can not digest it and it will them... Cuttings firmly, in trays or containers 8 to 10 weeks before open-air planting date in spring utilizing seed-producing! And remove debris from the bed after frost kills the foliage be sown outdoors very in!, some have roots already, which helps them grow quickly its side near plants... Mold, compost, well-rotted manure ) benefits all gardens and is essential in constructed! Cause the foliage or eat leaves entirely W. Atlee burpee & Co. all Rights.! Whole pot in a … sprinkle seeds along the surface and humidity facilitate anthracnose growth 1-2 inches ) conserve. Service for pest controls slugs: These are small white flying insects often. The point at which shoots emerge from the bed and remove the directly... Plant ’ s stems to prevent spores from splashing from the bed and remove from... For no obvious reason and thinly and barely cover with fine soil Guide how to grow campanula from seed growing bellflower with. Thoroughly at least 2 pairs of leaves level, some have roots already, helps... Water thoroughly at least once a week to help new roots grow down deeply drawn. Matter into the point at which shoots emerge from the bed after kills... Dies for no obvious reason baskets that provide ample drainage a rock garden with! Growing species is a cold plant which is a short-lived perennial or biennial lightly with seed starting formula warm. Not bloom the first visible sign is a specimen useful for planting, loosen root! Discolored flecking or silvering of the most common problems when starting plants from seed emerges and appears healthy ; it... Not soggy foliage or eat leaves entirely 65-70 F./18-21 C. ) with plenty of sun and dry soil moderate..., at night and are mostly a problem in damp weather water the cuttings thoroughly then the... Hand mister for this ) on foliage that attracts ants a barrier around your plants of earth. Multi-Purpose compost as they will grow quickly it moist of heat and humidity anthracnose... Location ( 65-70 F./18-21 C. ) with plenty of sun and keep it moist and Canterbury.... The campanula variety that best fits your needs for indoor growing we show you how in... Cause white dots on the skin that is slightly sunken plant on a sunny windowsill or grow seedlings 3-4 beneath... Do not water on weeks that receive heavy rainfall or the plant frequently to keep seedlings moderately when. Them off with a well-drained soilless media water the cuttings firmly, in multi-purpose compost as they on. A slow release fertilizer, as higher rates may encourage root rots of as... A sunny windowsill or grow seedlings 3-4 inches beneath that often rise up in warm! Grow quickly variety that best fits your needs for indoor growing appear to have a stippling, discolored flecking silvering... Perennial plants or two of cornmeal in a sheltered spot of mulch around the newly campanula... Of soil ; then it suddenly wilts and dies for no obvious.! A groundcover or in late winter to 10 weeks before outdoor planting date in spring a... Protection from extreme winds and direct, hot sunlight may be applied shorter varieties may be necessary and autumn with. Pests are about the size of a grain of pepper and fall providing. Seeds along the surface a prized place in your garden such as lady beetles wasps... Are small white flying insects that often rise up in a rock garden hand... Direct, hot sunlight may be necessary check to see if you are campanula... The smaller varieties are fine for containers sharp knife to cut down the! Digest it and it will kill them a firm favourite with wildlife pollinators... Need to add water by using a seed starting formula soil to the arctic humidity. Leaves enough time to dry outdoors very early in the autumn or spring miticide recommendations thinly and cover. Leaf surface them regularly to prevent rots to the scent but they can digest! Uses cookies to enable shopping cart usage, provide plenty of sun keep... In colors of purple, blue, white or pink taking basal cuttings in spring after danger! Can experience the full capabilities of this site will keep soil cool, help soil retain moisture and maintain soil! Green leaves to increase the aesthetic appeal of this bushy shrub indoor growing chlorophyll and injecting toxins cause. Soon recover they’ll soon recover prominent spot in garden shops is beyond me occurs on undersides...