Bloom Time For Astilbe Plants When Does Astilbe Bloom

They bloom for 2 to 3 weeks. Depending on the variety, astilbes flower from early to late summer. Early blooming varieties begin to flower in late May or June while late bloomers begin in late July or early August.

Do Astilbes bloom all summer?

Astilbes bloom between late spring and late summer. They flower over a fairly long season since each flower plume consists of hundreds of densely packed tiny flowers, opening in succession.

Will astilbe flower the first year?

Even a small plant will quickly fill out and perform well in its first year. ... If you plant different types of astilbe, you can prolong the bloom almost all season. The plumes remain in flower for several weeks and continue to look good as they fade and dry on the plant.

How do I get my astilbe to bloom?

Also astilbe set flower buds for next year in the late summer early fall so fertilizer applications at that time are the most beneficial for flower bud formation. Keep them well watered also. Hope this helps (Thanks, Greg!).

Why are my astilbe not blooming?

Soil and Moisture – Although astilbe prefers organic, well-drained, acidic soil, it's important that the plant is relatively moisture retentive. ... Fertilizer – Astilbe plants are heavy feeders and may not bloom without adequate nutrition; this is a common reason for an astilbe not flowering.

How do you keep astilbe blooming all summer?

The trick to extending astilbe plant bloom time is to install a variety of cultivars from each blooming period. Consider the varieties “Europa” (pale pink), “Avalanche” (white), or Fanal (deep red) if you want astilbe with late spring or early summer bloom time.

Should astilbe be cut back after blooming?

After blooming has finished for the season, feel free to clip off any spent flower stems. Your astilbes will continue to provide attractive foliage until fall. After the first frost, the leaves may yellow; trim leaves if you wish and fresh growth will come next spring.

Does Astilbe prefer sun or shade?

When & Where to Plant Astilbe

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).

How many astilbe Can I plant together?

Like most perennials, astilbes look their best in groups of three or more plants of the same color.

Are astilbe poisonous to dogs?

Astilbe may be some of the taller plants in your perennial shade garden, as they grow to heights between 2 and 5 feet. ... This is one of the easier-to-grow shade perennials since it requires minimal care beyond basic watering. Both astilbe and yellow corydalis are non-toxic to dogs.

What can I plant next to 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. Coral bells are a relative of astilbe and have more or less identical planting requirements.

How long do astilbe plants bloom?

Astilbes shine when many other shade loving perennials are waning. They bloom for 2 to 3 weeks. Depending on the variety, astilbes flower from early to late summer. Early blooming varieties begin to flower in late May or June while late bloomers begin in late July or early August.

Does astilbe multiply?

Astilbe are shade-tolerant plants with average moisture needs. They have fern-like foliage and colorful flowers ranging from pink to red or white. They grow up to 5 feet (1.5 m) tall and they can multiply quickly, so it is important to divide your astilbe regularly.

Should astilbe be cut back for winter?

When winterizing astilbe plants, you can cut all the foliage off, leaving just a 3-inch (7.5 cm) stem above ground. It makes astilbe winter care a little easier, and all new growth will come back to replace it in the spring. ... They'll dry out and provide some interest in your garden when most other plants have died back.

Why did my astilbe flowers turn brown?

The most common cause of browning astilbe is poor conditions. Astilbe thrive in moist conditions with soil that drains well and partial shade. ... Use mulch to keep water in the soil but avoid soggy soil. Even if your plants have been browned by drought, keep watering, as they may come back healthy next year.

Do Astilbes spread?

Most astilbes spread easily, so divide your plants every 3 to 5 years to prevent overcrowding and to keep them vigorous and healthy.

When can I divide astilbe?

You can also divide the plant (digging a piece out with a shovel) in early spring or fall, but not before the third year. Dividing your astilbes is healthy for the plant and encourages growth, and divided plants will look exactly like the original plant.

What perennials should not be cut back in the fall?

Don't cut back marginally hardy perennials like garden mums (Chrysanthemum spp.), anise hyssop (Agastache foeniculum), red-hot poker (Kniphofia uvaria), and Montauk daisy (Nipponanthemum nipponicum).

How do you divide and transplant Astilbe?

Remove the astilbe plant from the soil, keeping the root ball attached to the plant. Slice through the roots with a sharp shovel blade, cutting from the top. Create at least four transplants from each plant. Replant each in a prepared hole, then repack the soil around it.

How do you maintain Astilbe?

All astilbes, even the more drought-tolerant varieties, prefer cool, moist soil rich in organic matter. Keep the soil evenly damp but not soggy, especially during the winter when plants are dormant. Avoid planting in heavy clay soils and sites with poor drainage.

Will Astilbe grow under trees?

Even grass and supposed "shade plants" such as azaleas, astilbes and ferns have a hard time growing under trees. That's because this is dry shade - with big-root competition to boot.