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Astilbe arendsii Showstar seeds

Astilbe x arendsii Showstar
Arendsii Astilbe, False Goat's Beard, False Spirea

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Currently, no germination in the greenhouse.

christine vandaneigen, 11/04/2016

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This plant carries a 6 months recovery warranty

More information

The astilbes in this mix are perennial varieties with a compact habit, flowering in dense, variegated panicles of various colours including red, pink, white or cream depending on the plants. Ideal for ornamental flower pots, they prefer a moist soil and a semi-shaded exposure.
Flower size
20 cm
Height at maturity
40 cm
Exposure
Partial shade
Annual / Perennial
Perennial
Germination time (days)
30 days
Sowing method
Sowing under cover, Sowing under cover with heat
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Sowing period January to March
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Flowering time June to July
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Description

The Astilbes arendsii 'Showstar' are perennial plants in a mixture, with a compact habit and a very colorful flowering that makes them ideal for ornamental flower pots and borders. They bloom in summer, offering dense panicles of various colors such as red, pink, white, or cream depending on the plants. They thrive in moist to wet soil, also brightening up the surroundings of water features and cool areas of the garden. Their feathery inflorescences remain very attractive in dried bouquets.

 

The Genus Astilbe belongs to the Saxifragaceae family. The selection 'Showstar' brings together rhizomatous and stoloniferous perennial plants, which have a clump-forming and bushy habit from spring onwards.  Each plant will reach a height of 40 cm when in flower, spreading to 30 to 40 cm (15.7 in). It is a long-lived perennial with deciduous, compound, and dentate leaflets, dark green in color, particularly attractive with its glossy appearance. The flowering takes place from late spring to early summer (June-July), in the form of dense and feathery panicles, 20 to 30 cm (11.8 in) long, composed of tiny flowers that fade slightly when they open. The inflorescences can be red-pink, salmon-pink, white-cream, or white depending on the plants. An adult plant can produce up to 30 panicles in one season.

 

The 'Showstar' Astilbe can easily be grown in containers (with careful watering), flower beds, borders, as cut flowers for drying. It also thrives in semi-shaded borders, woodlands, or hedges. Combine these plants with Hostas, Ferns, Arums, or Woodruff, for example. These plants can be forced in a greenhouse for early flowering.

 

Arends astilbe hybrids present less risk of allergies than other varieties.

Flowering

Flower colour multicoloured
Flowering time June to July
Inflorescence Panicle
Flower size 20 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 40 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Astilbe

Species

x arendsii

Cultivar

Showstar

Family

Saxifragaceae

Other common names

Arendsii Astilbe, False Goat's Beard, False Spirea

Origin

Cultivar or hybrid

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Planting and care

Astilbe seeds are generally sown indoors in early spring and transplanted outdoors after the last frost. Use a light mixture of soil and compost, and place the seeds on the surface, lightly pressing them into the substrate (the seeds should not be buried). Make sure the soil is properly drained, not waterlogged, but capable of retaining moisture, which is essential for germination that will occur in light and take 28 to 35 days. For best results, add a little fertilizer with a high nitrogen concentration. Keep the Astilbe plants indoors until they reach about 6 cm (2.4 in) in height. Transplant to the garden when there is no longer a risk of frost.

Cultivation:

Plant Astilbe ardensii 'Showstar' in moist to wet, rich, neutral to acidic soil. This hybrid cannot tolerate water shortage. The plant adapts well to clay soils if they are healthy and well amended. Note that Astilbes do not tolerate being flooded in winter. Install the astilbes in partial shade or in a sunny but not scorching exposure: in nature, these plants grow in humid woodlands. They will need to be watered daily in hot summers. Prune faded flowers after flowering to promote better foliage development. The flower stems can also be left in place if you want to decorate the garden during the winter season, simply remove them in the following spring. Avoid working the soil near these plants, as the rhizomes develop near the surface. These plants are disease-resistant and are rarely attacked by insects.

Sowing period

Sowing period January to March
Sowing method Sowing under cover, Sowing under cover with heat
Germination time (days) 30 days

Intended location

Suitable for Woodland edge, Pond edge
Type of use Border, Edge of border, Container
Hardiness Hardy down to -34°C (USDA zone 4) Show map
Ease of cultivation Experienced
Exposure Partial shade
Soil pH Acidic, Neutral
Soil moisture Moist soil, Damp soil, rich, humus-bearing and clayey.
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