Light: Astible grows best in part shade. It can thrive in full sun, but will need shade in the afternoon in hot summer climates. In full shade, flowering will be reduced. Soil: Astilbe thrives in moist, well-drained soil that has a slightly acidic pH (6.0).
What goes well with astilbe?
There are quite a few plants that meet these astilbe companion planting qualifications. Rhododendrons, azaleas, and hostas all prefer shade and grow in a very wide range of hardiness zones.
Ideas for Astilbe Companion Plants
- Ferns.
- Japanese and Siberian iris.
- Trilliums.
- Impatiens.
- Ligularia.
- Cimicifuga.
Does astilbe grow in full shade?
Lovers of rich, moist soil, astilbes surprise you with their sheer vibrancy and range of flower and foliage combinations. These hardy perennials are happiest in a shady spot, adding drama to bog gardens, damp borders and even containers.
Can astilbe get too much sun?
Astilbes prefer light to moderate shade, but deep shade will result in few and/or poor flowers; full sun will burn the tender foliage.
Where does astilbe grow best? – Related Questions
Can astilbe take afternoon sun?
Sun and Shade Astilbe perform best in partial shade, but they will also grow in full shade. In cool, northern climates, most astilbe varieties will tolerate full day sun. Zone Astilbes can be grown in hardiness zones 3-8.
How many hours of sun can astilbe tolerate?
If astilbe receives 4 to 6 hours of sun a day, it will put on its wonderful flowered show. If planted in deep shade it will still fill your garden with lovely foliage, but few flowers.
Are astilbes invasive?
Today that group of astilbes looks fine, and, since this plant is not invasive, it has not taken over the area. Astilbes, which today form a group of 25 species, grow in various sizes from a few inches to more than 4 feet in height.
Should I deadhead astilbe?
Deadheading astilbe won’t encourage new flowers, so you should leave them in place through the fall. Eventually, the flowers will dry on the stalks but should stay in place. When winterizing astilbe plants, you can cut all the foliage off, leaving just a 3-inch (7.5 cm) stem above the ground.
Do astilbe grow well in pots?
Growing astilbe in pots is easy and container grown astilbe may be just the ticket if you have a semi-shady area that needs a splash of bright color. This delightful plant is available in compact, dwarf varieties or taller cultivars if you’re looking for a plant with a little more height.
Why is my astilbe turning brown and dying?
The most common cause of browning astilbe is poor conditions. Astilbe thrive in moist conditions with soil that drains well and partial shade. Make sure you water astilbe plants regularly and don’t let them get too much direct sunlight. Use mulch to keep water in the soil but avoid soggy soil.
What causes astilbe to wilt?
Astilbes begin to wilt, sometimes quickly, when they’re exposed to too much sun. The hot summer sun can also heat up and dry out the soil. Another symptom of too much sun is leaf scorching; the edges of the leaves may appear burnt or begin to shrivel.
Should you cut astilbe flowers turning brown?
Astilbe foliage generally holds up well through the growing season, as long as the plants are adequately watered during dry spells. If individual leaves turn yellow, brown or wither, they should be pruned.
How do you keep astilbe blooming all summer?
They love rich, moist soil. An annual spring dose of 5-10-5 organic fertilizer helps them produce their beautiful blooms year after year from spring through summer.
Should I cut off dead astilbe flowers?
Deadheading astilbe won’t encourage new flowers, so you should leave them in place through the fall. Eventually, the flowers will dry on the stalks but should stay in place. When winterizing astilbe plants, you can cut all the foliage off, leaving just a 3-inch (7.5 cm) stem above the ground.
Should astilbe be cut back after blooming?
Little maintenance is required of astilbe plants. The flower heads will dry on the plant and remain attractive for many months. The flowers can be cut whenever they start to look ragged, or left up for winter interest and cut back in the spring.
Does astilbe dieback in winter?
The astilbe is a strong flowering perennial that is native to Asia and North America. It does well in USDA zones that range between 3 and 9. Because of this, the astilbe can definitely survive winter, even during harsh temperatures and weather.
How do I prepare astilbe for winter?
Astilbe Winter Care
- Divide and Transplant. The first consideration as the growing season draws to a close is whether or not you need to divide your plants.
- Label and Cut Back. Whether or not you choose to divide your plants, you’ll need to cut them back for their winter dormancy.
- Water.
- Fertilize.
- Mulch.
How far do you cut back astilbe?
