Thistle Down Nursery
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Astilbe

General Guidelines for Growing Astilbe

Larger 2 eye Astilbe can be potted in a gallon size container. The smaller 1-2 eye cultivars can be potted in a 2-3 quart container. Use a commercial mix that has incorporated a low to moderate level of slow-release fertilizer or continually feed at every watering with 150 ppm N using a general all purpose water-soluable fertilizer such as 204020 or 155-15. The soil pH should stay between 5.5 and 6.5.

Plants rapidly dry out at high temperatures so begin growing plants cool at 55° to 60° degrees for the first week. Increase temperature to speed flowering or lower temperature to delay flowering. When grown at 68°, 'Deutschland' usually flowers in about five weeks,'Peach Blossom and 'Fanal' in six weeks, 'Bridal Veil: 'Spinell; 'Ostrich Plume' and 'Cattleya' in seven weeks. Some varieties may require up to 12 weeks to flower.

The most critical growing aspect with Astilbe is water. Plants should be kept moist, but not wet at ALL times. You should increase watering as the foliage emerges and plumes mature. Plants should never be allowed to dry out. Light shading (30% shade cloth) will help reduce stress.

Well worth the little extra care, the elegance of the feathery flowers, ferny foliage, array of colors and the flower times are spectacular when massed in a shady spot or combined with Hostas and Ferns.


ASTILBE (False Spirea, False Goatsbeard) Zones 4-9
arendsii 'Bressingham Beauty' arendsii 'Bressingham Beauty' 36" early-mid
Long lasting arching plumes of clear pink flowers. Handsome green foliage on mounded clumps. Introduced by Blooms of Bressingham. The bold foliage and large panicles are a classic with large leaf Hosta.
arendsii 'Cattleya' arendsii 'Cattleya' 40" mid
Tall, elegant large open panicles of rose-pink. One of the larger Astilbes. Impressive in flower arrangements or in the garden.
chinensis 'Purple Candles' chinensis 'Purple Candles' 42" late
('Purpurkerze) Dense, poker-like purplish-red plumes that soften as it ages. The boldest astilbe for overall garden effect. Very unique.
arendsii August Light' arendsii August Light' 28" mid-late
(Augustleuchten) Very full red plumes. One of the latest to flower. Green foliage, newer leaves are tinted red.
arendsii 'Fanal' arendsii 'Fanal' 20" early
Deep, blood red narrow spikes. The foliage in spring is mahogany in color, turning green by summer. One of our most popular reds.
arendsii 'Granat' arendsii 'Granat' 24" mid
This starts off a deep rose red, softening as it ages. Huge, dense upright panicles. Deep glossy green foliage.
arendsii 'White Gloria' arendsii 'White Gloria' 24" mid-late
('Weisse Gloria) Very distinctive flower shape with blocky full white plumes.
chinensis 'Pumila' chinensis 'Pumila' 10", late
Lavender with neon-pink high-lights and fuzzy, stiff panicles. Can tolerate dryer conditions. Popular carpeting type astilbe.
chinensis 'Veronica Klose' chinensis 'Veronica Klose' 16" late
A clump forming type. Dark rose-purple flowers. Flowers are torch-like in shape. A real stand-out for the late summer garden.
simplicifolia 'Pink Lightning' 16" late
18 inches - late.
Shiny dark green foliage with darker leaf margins. Well branched red-purple flowers eventually become pink. Slight fragrance.
  'Showstar'
12 inches.
Feathery plumes in a charming mix of pink, white and rose red. Foliage is deep green, compact, and uniform.
Vision in Red
32 inches.
The latest addition to the Vision series with pinkish-red flowers opening from deep red buds. Bronze green foliage.

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