How far apart do you plant astilbe

Spacing: Space astilbe plants 18 to 24 inches apart. 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. Planting: Plant astilbe in spring or fall.

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.

Does astilbe multiply?

Astilbe are shade-tolerant plants with average moisture needs. … They grow up to 5 feet (1.5 m) tall and they can multiply quickly, so it is important to divide your astilbe regularly.

How wide do astilbe get?

genus nameAstilbeplant typePerennialheight1 to 3 feet 3 to 8 feetwidth18 to 30 inchesflower colorPurple Red White Pink

Do astilbes like shade?

Lovers of rich, moist soil, astilbes surprise you with their sheer vibrancy and range of flower and foliage combinations. These hardy perennials are happy in sun or shade, adding drama to bog gardens, damp borders and even containers.

What looks good next to Astilbe?

• Ferns.
• Japanese and Siberian iris.
• Trilliums.
• Impatiens.
• Ligularia.
• Cimicifuga.

What do you plant Astilbe with?

Best of all, Astilbe are adaptable and make good companion plants for many common garden plants, and look well with Hostas, ferns and grasses and look good combined with these plants alongside a stream or pond – see illustrated in planting ideas for damp shade which shows just how lovely this combination is along side …

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. Cover the root zone with a layer of bark chips or other mulch to help retain moisture in the soil and hold down any competing weeds.

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 soak astilbe roots before planting?

It will thrive in partial to full shade. Perfect for a rock garden, herbaceous border, or in containers, the Astilbe is fairly easy to grow and is hardy in zones 4-9. They love moisture, so a good soaking every day or so is recommended.

Article first time published on

Does astilbe transplant well?

You can transplant most flowers, including astilbe, whenever you want to give them more advantageous positions in the garden. … Perennials that bloom in the spring, including astilbe, should be transplanted in late summer or fall. This is the right time to divide too, if necessary.

Does astilbe need fertilizer?

Fertilizer. Astilbe plants need phosphorus to bloom, so choose a fertilizer with the makeup of 5-10-5 or 10-10-10. Rake the fertilizer into the soil two weeks before you plant, or sprinkle a few granules onto the soil after the astilbe has been planted.

How long does it take astilbe to grow?

Expect root growth to begin almost immediately after planting. In warm climates, top sprouts will form within a few weeks; in cool climates sprouts will emerge in the spring. Plant your roots in the fall 8 weeks before hard frosts typically occur in areas with winter temperatures that drop below freezing.

Where should I plant astilbe?

When & Where to Plant Astilbe 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).

Why do my astilbe keep dying?

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.

Do slugs like astilbe?

Slugs and snails love tender, succulent leaves so choosing plants with leathery, stiff or aromatic leaves can really lessen the trouble you will have. … Most woody plants and ornamental grasses are quite resistant. Astilbe Light and airy flower clusters, 1-3 ft.

Does astilbe come back each year?

Astilbe are perennials. They bloom in the spring until late autumn and then they’ll naturally turn color and drop all their leaves. When cared for over the winter, they’ll come back in the spring and bloom again. Cut back for the best blooms next season.

Can you overwater Astilbe?

Over watering can also lead to increased transplant shock and poor root establishment so let the bed get a bit dry before you water again. 2-3x per week aught to be enough or you will actually be further shocking the plants with over watering.

Does astilbe like wet soil?

Astilbe (Astilbe simplicifolia) – One of my favorite astilbes is ‘Sprite’ because of its unique airy, shell-pink flowers and dark, bronze-green foliage. Prefers moist, humus-rich roil.

How do you keep astilbe blooming all summer?

Take good care of your new astilbe plants. Do not plant them in full sun. After a few years, you will need to divide them in the fall when they start to get crowded. Treat them right and you will have astilbe plant blooms all summer long.

Can you plant astilbe under pine trees?

Hostas, dead nettle, astilbe and bleeding hearts all grow well under pine trees (acidic, dry soil).

Should astilbe be deadheaded?

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. … It makes astilbe winter care a little easier, and all new growth will come back to replace it in the spring.

How much does astilbe spread?

A flowering perennial that reaches heights ranging from one to six feet, astilbe spreads via underground rhizomes. It’s a relatively slow-growing perennial that will fill in a space that you’ve chosen for it nicely, when given enough time.

Does astilbe reseed itself?

Astilbe grow from rhizomes, which produce the shoots and blooms of this lively shade plant. … Most plants start out as a seed but due to many variables, the results may not be true to the parent plant. Also, plants that are derived from rhizomes, corms, or bulbs need many seasons to mature fully and produce flowers.

What is the tallest Astilbe?

Astilbe chinensis var. tarquetii ‘Superba’ is one of the tallest varieties of Astilbes and always creates a dramatic statement in the garden, with its stunning, purple-rose, lance shaped flower plumes rising up to 4-5 ft high (120-150 cm).

How long does it take astilbe to grow from bare root?

If you detect this problem, make sure you take these plants out of the boxes. You cannot store these roots any longer they have to be potted immediately. After planting a bare root Astilbe in spring, it will take about 8-10 weeks before the plant is ready to be sold.

How deep are astilbe roots?

Part 3 of 4: In addition to being twice as wide as the clump of roots, the hole should also be about 4 to 6 inches (10 to 15 cm) deep. Place a division into the hole. The roots should be below ground level, and the crown should be around 1 to 2 inches (2.5 to 5 cm) below ground level, as well.

Do astilbe have deep roots?

Astilbes prefer rich, organic type soil. … deep so that the roots of astilbe flowers have plenty of room to develop. Place the astilbe plants into the soil, keeping the crown at the same level as the top of the soil. Water well when planting and keep the soil consistently moist.

When should astilbe be separated?

Cut them back in the spring. 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.

When should I repot astilbe?

You can successfully divide either in the Autumn or the beginning of Spring as you do with most perennials with latter probably being the prefered time as they are starting to root as they come back to life after being dormant over winter.

Can I transplant astilbe in spring?

Astilbe can be successfully divided in fall or early spring. If divided in fall, you can directly replant the new divisions, or you can store them in pots in your garage for the winter to gift to your friends, or for planting in your garden the following spring.