Division is by far the faster of the propagation methods and will result in plants the following season. Astilbe (Astilbe chinensis), also known as false spirea, is an herbaceous perennial plant prized for its large flower clusters and ease of growth. They have long-blooming, plume-like flowers in soft shades of white, pink, and red, and the flowers are held on tall, stiff stalks above the airy foliage. Care Information. A healthy, vigorous performer. Astilbes are one of the easiest perennial flowers to grow. You should prune this shrub every winter as part of Sorbaria shrub care. Other common names astilbe 'Red Sentinel' . This is a gorgeous variety with dark bronzed leaves and corally pink plumes. The feathery plumes of flowers come in a range of colours from deep red, to pinks, lavenders and white. It is summer flowering, easy to grow, and looks very similar except it is a larger plant and only has white flowers. Great in the border, also thrives in tubs or mixed containers. They also like moist soil conditions which makes them suitable for waterside areas or boggy conditions. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. RHS Accepted name. The mulch helps retain moisture and provides a natural fertilizer as it breaks down. Discard any roots that have no stems growing from them. Each spire is comprised of many tiny little flowers which open one after another. Your plant will benefit from being moved to a more shaded position to prevent this happening any further. They will do well in relatively boggy areas of the garden such as by ponds and streams. They do not tolerate direct sun at the hottest part of the day. The perfect perennial for a shady border with dappled light! Astilbe Bloom Time: Early to mid-summer. Astilbe Transplanting. The Royal Horticultural Society is the UK’s leading gardening charity. The most critical growing factor for Astilbe is water. Astilbe winter care is as simple as that – plenty of water before the frost and a good layer of mulch to keep it there. Keep them well-watered as they hate having dry roots. In fact, many people like to leave the seed heads on as they add extra interest and texture to the garden. While you can grow astilbe from seed they are difficult to germinate so most people buy the plants. You can cut back the plant at this time to keep it tidy or you can do this in spring when the new growth begins. You will also have to plant something that is not susceptible to bacterial leaf spot in its place as the soil will be infected. They offer a feathery texture with the foliage and great vertical, fluffy spires of flowers. Here’s how to grow and care for astilbes in your garden. If you buy these plants, make sure you get them in the ground as soon as possible after buying so that they do not dry out. During the growing season, a fortnightly application of soluble fertiliser will keep them healthy and flowering well. Astilbes are a woodland or ravine plant and do not enjoy very high temperatures. This variety has mauvy-pink flowers and mid-green leaves. Most astilbes prefer semi-shade. Keeping the ground clear of leaf litter and plant matter will make sure these bugs have no place to overwinter. Inflorescence length 15 - 20 cm. Photo by: Gabriela Beres / Shutterstock. Inflorescence diameter 5 - 10 cm. Its dark green foliage is topped with crimson plumes of flowers. Rarely they may be attacked by the tarnished plant bug. Join the RHS today and get 12 months for the price of 9 Likely the focal point of your shady summer flower bed, astilbe flowers can be recognized by their tall, fluffy plumes that tower above frilly, fern-like foliage in the shade garden. Don’t worry about this damaging them, they will soon recover and will be healthier than before when they were congested. 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