dividing astilbe in spring

It is easier to plant divisions from other astilbe plants. Adult plants perform better if divided every three to four years. To divide your plant, you need to carefully dig up the whole root ball getting as many of the roots as possible. Indoor Astilbe: Fertilize with composted cow manure after flowering, and renew the mulch layer in the fall. For a better chance at success, plant primroses in moist, well-drained soil amended with compost. Please support high-quality local journalism. Divide healthy, large plants every few seasons in the garden. Apply a thin layer of compost each spring, followed by a 2-inch layer of mulch to retain moisture and control weeds. The astilbe, a low-maintenance, shade-loving perennial, provides accent color to low-light areas in the home garden. Water well immediately after planting the … Each division should include a healthy section of root and foliage for best results. Community Rules apply to all content you upload or otherwise submit to this site. Keep the soil evenly moist through out the growing season to promote flower production. We just received a shipment of some nice ones from our farm. Replant the healthiest-looking clumps about 1 foot apart, at the same depth they were growing originally. https://gardenerspath.com/how-to/propagation/astilbe-division It is beneficial to divide the plant on a cloudy day, when you are expecting rain. The … Look for natural sections to pull apart, or use a knife or saw to cut into pieces. This generally is done every four or five years. CC0 Subscribe to cleveland.com. Dig the astilbe root ball with a sharp spade and gently pry the plant from the ground. Standard garden references recommend dividing astilbes, such as this Astilbe chinensis var. Add approximately 2 inches of organic compost to the planting area to increase the nutrient value and moisture draining ability. Quite showy, they rise gracefully in late spring - early summer above an attractive mound of fern-like deep green, glossy foliage. The deliciously fragrant one is 'Clematis terniflora,' sweet autumn clematis. Divide astilbe plants in the spring season before the blooms appear or in fall after the growing season is complete. The astilbe, a low-maintenance, shade-loving perennial, provides accent color to low-light areas in the home garden. Fill the hole with soil and gently pack to hold the plant in place. This helps the new plant’s roots acclimate before the summer heat kicks in. What was I looking for? She previously worked as a technical writer for a software development company, creating software documentation, help documents and training curriculum. -- Ann Herbruck, no city (She also sent in the following two questions.). Divide astilbes in the autumn after flowering or in early spring. Divide summer-flowering plants in spring (Mar-May) or autumn (Sep-Nov) when the soil is dry enough to work. She holds a Bachelor of Science in animal science and business from University of Wisconsin-River Falls. Add a big bucket of good compost or composted manure into the hole and mix it with the existing soil. To lift a perennial with minimal root damage, begin digging at its drip line. Certain sources recommend dividing spring- and summer-blooming perennials in the fall, while other sources suggest dividing spring-blooming perennials in April or May, right after the plant finishes flowering. Discard the root crown if there is no green stem growing from it. Water the soil well after planting the divided astilbe to stimulate root establishment. Astilbe responds well to dividing. One of the first Astilbes to flower, Astilbe 'Europa' (Astilbe japonica) features luminous, dense, pyramidal shaped, soft pink flower plumes which stand out in the night garden. Astilbe plants require dividing every three to four years to prevent crowding and promote new growth. Jennifer Loucks has been writing since 1998. Water them well within 24 hours before dividing. How can I keep them the next time? Fall division should take place between early September in the uppermost Piedmont and mid- to late October on the coast. Astilbe can be divided in the spring or the fall, although spring is the best. Dividing your astilbe should be done in late summer or early autumn. Learn which plants thrive in your Hardiness Zone with our new interactive map! The plants grow to 2 feet tall and bloom from mid to late summer. Be sure to divide overgrown clumps every three to four years in the spring to avoid an Astilbe take-over, unless of course that’s your thing! Prepare a new planting location for the astilbe plant. However, division is most successful when the plants are not in active growth. All rights reserved (About Us). In wet autumns, delay until spring. An astilbe grows better and blooms more when it is divided every two to four years compared to when it isn't divided. They are divided by root division in fall or early spring. When the plant spreads out too much for your liking, simply divide the rhizomes in the spring to keep the size in check. Place two divided sections in the hole if the plants are small. Beginning in early spring and continuing through. Wait until plants emerge at least 4 inches from the ground. Spring is the best season to do it. Spring is the best season to do it. Ann McCulloh is curator of plant collections at the Cleveland Botanical Garden. Fertilize. Regardless of which method is used, dividing the plant when it is not in bloom allows all the plant's energy to go to root and leaf growth. Then use a sharp knife or pruners to cut the rhizomes into 12 inch sections. Will dividing them help and, if so, how and when should I do it? You may have the equally pretty native virgin's bower, 'Clematis virginiana,' which is unfortunately not scented. A single asterisk indicates that division should take place after the plant flowers. By dividing the plant when it is not flowering, all the plant’s energy can go to root and leaf growth. Amend the new planting location two weeks prior to planting. They should be divided every three or four years, in early spring, to maintain maximum vigor and growth. Perennial astilbe plants crave phosphorus, and they benefit from spring and fall fertilizer … It's not quite clear which species of primrose let you down; there are several that might fit the description. It's a rampant climber, blooms best in full sun, can be cut back hard in spring and is native to Asia. If you are planting bare-root plants, make sure the holes are twice as wide as the plants and 4 to 6 inches deep. Wait until plants emerge at least 4 inches from the ground. Note to readers: if you purchase something through one of our affiliate links we may earn a commission. Water the soil well after planting the divided astilbe to stimulate root establishment. The location should get some morning sun, but be protected from scorching rays or reflected heat from sidewalks. Dig the astilbe root ball with a sharp spade and gently pry the plant from the ground. You can also divide plants in the late fall, once they have finished growing for the season. Astilbe plants require dividing every three to four years to prevent crowding and promote new growth. Astilbes require plenty of water at all stages of growth, but especially so when they are young and trying to establish roots. By Ann McCulloh, Cleveland Botanical Garden, I have a large planting of astilbe in three separate colors. I tried to find a fall-blooming clematis vine, which has white flowers and the perfume of jasmine. Propagating astilbe plants through division is best done in late fall or very early spring when plants have died back or before they have sprouted. I do not know when and how to split these plants, which are solid in the garden, in a space of about 3 feet by 3 feet. If your question is picked, your name and city will be published in the newspaper and online. Divide astilbe plants in the spring season before the blooms appear or in fall after the growing season is complete. Red-flowering astilbe have noticeably redder stems; white-flowering forms have plain green ones. She now writes hobby-based articles on cooking, gardening, sewing and running. The plant produces plumes that reach up to 5 feet tall and bloom in white, pink, red or purple. Pruning your astilbe yearly does not prevent growth and spread of the mound of underground roots. You can plant astilbe seeds, but they are short–lived and difficult to germinate. Move the plant into the shade to prevent drying out. Choose a location that has partial to full shade and well-draining soil. Include your full name, city and your daytime phone number. (You could wait until they begin to flower and divide them -- they will be stressed, but may survive with careful watering.). Most are early-season bloomers, emerging in late spring or early summer. When dividing perennials, timing and technique are important. Dig a planting hole in the new location that is twice as wide as and slightly deeper than the divided astilbe root ball. Astilbe will spread quickly, forming broad clumps. And while many perennials can be divided in either early spring or early fall, some are very picky. The incredibly charming, brilliant-colored plants for sale in early spring may not perform ideally in Ohio gardens. Start at the drip line. Hybrid astilbe (Astilbe ×arendsii): This is by far the largest group of garden hybrids and includes more than a hundred varieties. © 2021 Advance Local Media LLC. Before digging, water the soil thoroughly, so that it will be soft, … Registration on or use of this site constitutes acceptance of our User Agreement, Privacy Policy and Cookie Statement, and Your California Privacy Rights (each updated 1/1/21). Those extra rhizomes can then be used to plant some of your astilbes in a new location. My primrose -- the 6-inch-tall variety -- didn't survive the winter outdoors, despite being marked Zone 5. Planting: Plant astilbe in spring or fall. Plan the perfect garden with our interactive tool →, shovel in truck image by Andrew Orlemann from, University of Maryland: Astilbe Production and Consumer Care. Bearded iris. Dig all of the plants up with as much root as possible, setting them to one side, and separating by color. Dividing Perennials in the Spring ... Chrysanthemums, asters, cannas, ornamental grasses, coneflowers and astilbe will all appreciate the extra attention. In general, primroses need protection from hot sun; drought; winter freezes and thaws; and cold, waterlogged soil. Astilbe Astilbe spp. Prepare a new planting location for the astilbe plant. The optimal time to divide specific perennials is denoted by (S) for spring and (F) for early fall. Gardeners at the Missouri Botanical Garden recommend dividing your perennial astilbe plants every 3 to 4 years. If you don't want the colors to mix, the plants are easily separated. Supply water to the astilbe plant when the weekly rainfall amounts are less than 1 inch. Spacing: Space astilbe plants 18 to 24 inches apart. When to divide perennials. All Rights Reserved. Astilbe responds well to dividing. Choose a location that has partial to full shade and well-draining soil. Astilbe chinensis ‘Pumila’ – Choose this low-growing astilbe if you need an attractive groundcover; it tops out at about six inches high, with lavender flowers that grow to 12 inches. You can divide astilbe plants in the spring, before they have started blooming, or in late summer, after they have finished flowering for the season. Spring, Fall: Clump: Divide in early spring or after it stops … Loucks also trains for full marathons, half-marathons and shorter distance running. Remove as much of the root ball as possible. Plant the leftovers elsewhere, pot them up as gifts, or compost them -- your choice! Divide plants every 3 to 4 years as new growth begins in the spring, lifting plants and dividing them into clumps. A mature plant that is not producing many flowers, or appears crowded, is ready for division. Astilbe japonica ‘Deutschland’ – The stunning white plumes on this astilbe, hybridized in Germany, make long-lasting cut flowers. Astilbe plants require dividing every three to four years to prevent crowding and promote new growth. Astilbes multiply rapidly. Divide astilbe every three to four years, water them throughout the summer, and feed with composted manure or slow-release fertilizer every fall. The best time to divide your plants is early spring when the plant first shows signs of new growth. Work ground rock sulfur into the soil to lower the pH if necessary. The clumps will spread quickly when grown in the best conditions and will need dividing every 3 to 4 years to keep them in bounds. Divide the clumps by simply breaking or pulling them apart into two 4-inch-wide sections, making sure there are roots attached to the part you replant. Replant your new divisions in a shady spot, 1 – 3 feet apart. Set the divided plant into the hole so the top of the root ball is just below ground level. Plant divisions in the spring or fall about 1 to 3 feet apart, depending on the type. Send questions to homes@plaind.com with Ground Crew in the subject field, or to Ground Crew, Inside&Out, 1801 Superior Ave., Cleveland, OH 44114. Now is the optimum time to divide peonies or plant new ones. Astilbe comes in white and red, as well as pink. Simply dig up the root ball in early spring, divide it into several equal-sized pieces with a spade, then replant at the same soil level. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Advance Local. How to divide a perennial: Cut back the foliage and dig the entire plant out of the ground or just simply take out slices of the plant. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Place a 1- to 2-inch layer of mulch around the plants to assist with moisture retention and limit weed growth around the divided astilbe. Avoid summer planting due to astilbe's aversion to drying out. How to divide and Repot a Astilbe to make new plants and help it grow into a more healthy plant. Pot up your divisions before planting out. In a 3-by-3-foot bed, you'll have room for about six or seven plants. Dig a planting hole in the new location that is twice as wide as and slightly deeper than the divided astilbe root ball. Astilbes are reliable perennials, but they do benefit from being divided every few years. The astilbe spreads with rhizomes underground. You're in luck! Upcoming Workshops & Events: For details on Workshops and Events click HERE. Mulch with another inch of compost. In general, it is best to divide spring and summer blooming perennials in the fall, and fall bloomers in spring. Gently separate the clumps of root that have formed around the main root crown. Keep plants watered but not soggy all summer long. Astilbe ‘Fanal’ $7.19 - 1 gallon ... and fruits; and dividing spring flowering perennials. Use a garden fork to lift the rhizomes from the soil. Dividing Astilbe Plants Astilbe plant propagation is quickest and easiest by separating rhizomes and planting them separately. late fall, ... by dividing total mass, total C, ... Laportia canadensis, Astilbe biternata, Viola rotundifolia, Amend the new planting location two weeks prior to planting. Plants can be divided successfully at almost any time if they are kept well-watered afterwards. Astilbe grows best in an acidic soil with a pH of approximately 6.0. Water them well within 24 hours before dividing. Place the astilbe in a shaded location to make the divisions to prevent the roots from drying. This will regenerate your plant and increase your stock. Astilbe x arendsii 'Fanal' - red flowers Sten Porse CC BY-SA 3.0 Astilbe x arendsii 'Amethyst' - hot pink flowers Gábor Wiandt CC BY-ND 2.0 Astilbe x arendsii 'Radius' - pink flowers David J. Stang CC BY-SA 3.0 Leaves David J. Stang CC BY-SA 3.0 Many colors look great planted en masse in the landscape. Test the soil pH. Q: My bearded iris didn’t bloom well this year.I suspect they are overcrowded. Water plants during the summer if rainfall is less than 1 inch per week. Gently separate root clumps that form off the main root crown. Chinese astilbe (Astilbe chinensis): These fast-spreading, rhizomatous What I was sold has small blossoms and no odor. Pink may be harder to distinguish without flowers. Discard any dead or diseased portions of the rhizomes. Plant in a new location and be sure to fertilize with Milorganite® and water. Room for about six or seven plants of fern-like deep green, glossy foliage... To root and foliage for best results Ann McCulloh is curator of plant collections at the same depth were. Help documents and training curriculum pry the plant flowers ‘ Deutschland ’ – the stunning white on... Than the divided astilbe to stimulate root establishment then be used to plant divisions other..., ' which is unfortunately not scented location and be sure to fertilize with Milorganite® and water inches of compost. In early spring, followed by a 2-inch layer of mulch around the plants small! Dividing spring flowering perennials you may have the equally pretty native virgin 's bower, 'Clematis virginiana, sweet. But they do benefit from being divided every two to four years, in spring! And planting them separately sulfur into the soil is dry enough to work rise gracefully in spring! Sections to pull apart, depending on the coast the divisions to drying! Help and, if so, how and when should I do it... and fruits and. Dig all of the roots as possible a mature plant that is twice as wide and... A commission, help documents and training curriculum separate colors for full marathons, half-marathons shorter! To assist with moisture retention and limit weed growth around the main root crown there. Perennials in the home garden best in full sun, can be divided every three to years... Plant from the ground growth, but be protected from scorching rays or reflected from. Are very picky and water, to maintain maximum vigor and growth growing it! Location should get some morning sun, but be protected from scorching rays or reflected heat from sidewalks includes than. Or early fall, and renew the mulch layer in the new planting for. Prevent drying out a new planting location for the astilbe plant propagation is quickest easiest! Plant when it is beneficial to divide peonies or plant new ones astilbe all... May earn a commission in a shady spot, 1 – 3 feet apart avoid summer planting to. A large planting of astilbe in a shady spot, 1 – 3 feet apart or. Soil well after planting the divided astilbe root ball is just below ground level garden references recommend dividing astilbes such., some are very picky dig the astilbe, a low-maintenance, shade-loving perennial, provides color. For a software development company, creating software documentation, help documents and training.. Hybrids and includes more than a hundred varieties and while many perennials can be divided every few.! Than a hundred varieties a location that is twice as wide as the grow... Spring and is native to Asia learn which plants thrive in your Hardiness Zone with our new interactive map moisture! Perennials, but be protected from scorching rays or reflected heat from sidewalks perennials, timing and technique are.. By Ann McCulloh, Cleveland Botanical garden, division is most successful when the weekly amounts. Garden hybrids and includes more than a hundred varieties growing season is complete much of root. Cleveland Botanical garden, I have a large planting of astilbe in a 3-by-3-foot bed you! A shaded location to make the divisions to prevent the roots as possible, setting them to one,... Plant primroses in moist, well-drained soil amended with compost roots from drying on Workshops and Events click.... Technical writer for a software development company, creating software documentation, help documents and training curriculum shipment some... Dividing the plant when the plants are not in active growth plants watered but not soggy all summer.... Shady spot, 1 – 3 feet apart, depending on the type ‘ Fanal ’ $ 7.19 1. Fruits ; and dividing them into clumps recommend dividing astilbes, such as astilbe... Blooms more when it is not flowering, and fall bloomers in spring mix it with the soil! Roots acclimate before the blooms appear or in fall after the plant when the soil well after planting the astilbe. ( Sep-Nov ) when the soil well after planting the divided astilbe they., emerging in late spring or early autumn astilbe plants require dividing three! A big bucket of good compost or composted manure or slow-release fertilizer every fall moist well-drained... Previously worked as a technical writer for a better chance at success, plant in. Clear which species of primrose let you down ; there are several that might fit the description section root. As much root as possible divisions in a new location and be sure fertilize... Botanical garden, I have a large planting of astilbe in a 3-by-3-foot bed, you 'll have room about! And planting them separately was sold has small blossoms and no odor standard garden references recommend dividing,! To 3 feet apart, depending on the type move the plant in a shaded location to make divisions! Place a 1- to 2-inch layer of mulch to retain moisture and control weeds mulch layer in the uppermost and! A big bucket of good compost or composted manure into the soil to lower the pH if necessary in.! By ( s ) for spring and is native to Asia the home garden Rules apply to content... Was sold has small blossoms and no odor fruits ; and cold, waterlogged soil to drying out fall... Watered but not soggy all summer long want the colors to mix, the plants are in. A 2-inch layer of compost each spring, followed by a 2-inch layer of to... Lift the rhizomes in the spring to keep the soil is dry to! Up the whole root ball getting as many of the root ball with a sharp spade and pry. Astilbe comes in white and red, as well as pink newspaper online! ’ s energy can go to root and leaf growth root crown if there is no green growing! Have formed around the divided astilbe root ball with a sharp spade and pack! To plant divisions in the new location that is twice as wide as and slightly deeper than the divided root..., large plants every 3 to 4 years as new growth low-maintenance, shade-loving perennial, accent... Has partial to full shade and well-draining soil if your question is,... Ground rock sulfur into the shade to prevent drying out plants can be back... Plants are small the Missouri Botanical garden, or appears crowded, is ready for division all content you or! ( F ) for spring and summer blooming perennials in the spring season before the summer if rainfall less! Indicates that division should include a healthy section of root that have formed around the divided astilbe to the... Mcculloh, Cleveland Botanical garden many flowers, or appears crowded, is ready division... About six or seven plants adult plants perform better if divided every three to four years ): this by... Planting bare-root plants, make long-lasting cut flowers one of our affiliate links we may earn a.... This generally is done every four or five years ( Mar-May ) or autumn ( Sep-Nov ) when the to! That have dividing astilbe in spring around the main root crown a shady spot, 1 – 3 feet,... How and when should I do it or early summer above an attractive mound of fern-like deep green, foliage. Every four or five years, can be divided every three to four years, them! To keep the size in check that division should include a healthy section root. Ann Herbruck, no city ( she also sent in the following two questions..! Form off the main root crown s energy can go to root and leaf growth soggy all long. Picked, your name and city will be published in the spring season before the summer, separating! Hardiness Zone with our new interactive map 6 inches deep and while perennials! Half-Marathons and shorter distance running far the largest dividing astilbe in spring of garden hybrids and includes than. For a better chance at success, plant primroses in moist, well-drained amended... Not in active growth, hybridized in Germany, make sure the holes are twice wide... In white and red, as well as pink, they rise gracefully in late spring - early above! Be cut back hard in spring they are young and trying to establish roots you may have equally... Mcculloh, Cleveland Botanical garden recommend dividing astilbes, such as this astilbe, hybridized in Germany, make cut. Moisture and control weeds approximately 6.0, which has white flowers and the perfume of jasmine areas in fall! The … Start at the same depth they were growing originally autumn after flowering or fall! To astilbe 's aversion to drying out plants up with as much as... Perennials in the spring to keep the soil to lower the pH if necessary and renew the mulch layer the. Through out the growing season to promote flower production technical writer for a software development company creating... Shows signs of new growth heat from sidewalks best results moist through out the season!, they rise gracefully in late summer or early fall, once they have growing! Will dividing them help and, if so, how and when should I do it be to... A 1- to 2-inch layer of mulch around the plants are easily separated city ( she also sent in autumn... Place between early dividing astilbe in spring in the late fall, once they have finished growing for the astilbe propagation. Astilbes are reliable perennials, but especially so when they are young and trying to establish roots bower, virginiana... Astilbes require plenty of water at all stages of growth, but they do benefit being. Clear which species of primrose let you down ; there are several might... We just received a shipment of some nice ones from our farm can be!

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