RHS Garden Hyde Hall Spring and Orchid Show, Free entry to RHS members at selected If there are still water puddles 5-6 hours after a hard rain, scout out another site. Astilbe Bloom Time: Early to mid-summer. suppliers. Again, it can be treated with a fungicidal spray. Find a location where the soil drains well. Thriving in shady, regularly moist areas offers A. x arendsii plenty of planting companions. The plants will spread fast by suckers, and even faster in loose soil, so make time to pull up suckers as they appear. Sun Exposure: Partial shade to shade. If Bacterial Leaf Spot is present you will see brown or black spots on the leaves that grow in size. Firstly, the plants hate to dry out, so continue watering them until the ground freezes. A healthy, vigorous performer. Astilbes do not need pruning. Phosphorus will help the plant bloom well so choose a 5-10-5 or 10-10-10 fertiliser (the middle number is the phosphorus ratio). They do not tolerate direct sun at the hottest part of the day. 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. New plants are almost always grown from root divisions, rather than from seed, and both new and established plants thrive in thoroughly moist conditions. Growing astilbe is easy and the plants are relatively carefree, and just as tough as they are lovely. These attractive flowers make great companions for other shade tolerant plants, such as hosta and hellebores, for contrasting foliage and coordinating blooms. This disease is something that can be controlled but not eradicated. Applying a mulch will keep the roots, moist, provide nutrients and repress weeds. Unlike many flowers, removing flower heads will not result in more flowering. Its dark green foliage is topped with crimson plumes of flowers. Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Some varieties will do okay in sandy soil as long as they have shade. Replant into this area and your astilbe will get more of the moisture it needs as the soil will be slower to drain. Inflorescence length 15 - 20 cm. Astilbes are one of the easiest perennial flowers to grow. This variety has an RHS Merit award. Astilbe is a perennial with beautiful, showy flowers atop glossy, fern-like foliage. But, sometimes the leaves of astilbe … Impatiens and begonias are some classic shade-lovers that are paired well with astilbe. Use a sharp spade or knife to divide the root ball into sections. Quite showy, they rise gracefully in early summer above an attractive mound of fern-like deep green, glossy foliage. Astilbes are a woodland or ravine plant and do not enjoy very high temperatures. Learn more about Monrovia plants and best practices for best possible plant performance. English Gardens: Metro Detroit’s choice for garden plants, flowers, gardening supplies, patio furniture and garden accessories, fresh-cut flowers, floral … Comprised of six departments, the division’s … In low sun locations, be sure to pick a plant that thrives in the shade. The essential thing to remember with astilbe is to keep them well watered and out of strong sunlight. The Royal Horticultural Society is the UK’s leading gardening charity. Astilbe is the new must-have plant for shady garden plots, adding color, height and texture that breaks up the boredom of one-dimensional groundcovers and mounded plants. It is beneficial to divide astilbe to prevent overcrowded roots. They prefer their roots to be in moist, even boggy soil. There are many varieties of Astilbe. A little, dappled sunlight each day will help them flower, though. However, there are a few that can damage their health or even kill them off completely. Leaf size 10 - 15 cm. It presents as small dead spots on the leaves. In the wild in China and North America they grow in moist sites in mountain ravines, woodland edges and beside streams. Join the RHS today and get 12 months for the price of 9 If the soil is poor, dig in organic material, such as compost, to a depth of at least 20cm before planting. Plant these 1-3 feet apart, depending on the variety. Gently separate the clumps of root that have formed around the main root crown. You will also have to plant something that is not susceptible to bacterial leaf spot in its place as the soil will be infected. Your plant will benefit from being moved to a more shaded position to prevent this happening any further. This midsized selection has fluffy plumes in shades of lavender to magenta, over a mound of elegant, lacy green leaves. They work particularly well with other shade-loving plants such as hellebores, hostas, ferns and grasses. Division is by far the faster of the propagation methods and will result in plants the following season.