Astilbe Amethyst

Perennial Spirea

Note: This is an archive page preserved for informational use.
Cultural and Growing Info is provided below.

Strong lavender plumes over ferny foliage

Strong, lavender plumes of Astilbe Amethyst sway above lacy deep green foliage in profusion. Airy plumes in early summer move with the slightest breeze. Excellent fern-like foliage.

Astilbe are mainstays of shade and woodland gardens. They combine well with other moisture loving plants like Brunnera, Ligularia, Lobelia and Hosta.

Code ASAM

Patent

Plant Type Perennials

Species arendsii

Height Medium 18-24"

Spacing Plant 18" apart

Bloom Time Early Summer to Late Summer

Sun / Shade Half Sun / Half Shade to Full Shade

Zones 4-8

Soil Type Normal, Clay, Acidic

Sold In Plantable Pots (3.5x3.5x4")

Special Features

  • Attracts Butterflies
  • Deer Resistant
  • Attracts Hummingbirds
  • Rabbit Resistant
  • Shade Tolerant
  • Wet Site Tolerant

Astilbe General Information

Astilbe lend a refined grace to perennial borders. Perfect for the shade garden along with Hostas and Ferns. Lush deeply cut foliage is attractive for the entire season and is colored from green to bronze. Effective anywhere with rich moist soil and partial shade. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Astilbe Plant Care

Low care. Needs moisture during dry spells. Dried heads can be left standing if desired or cut down at anytime. Can be divided every 3-5 years in early spring. Cut through woody crowns to separate eyes to form additional plants. Add fertilizer or compost if desired when planting or moving and in late fall to winter.

Plantable Pots

Our plants are grown in 3.5x3.5x4” plantable pots. Made from 100% biodegradable coconut husk fibers (coir), these pots have tremendous advantages over plastic pots. With better air exchange, this "breathable" pot fosters robust root growth and reduces transplant shock since you can plant the pots directly in the ground. The pot naturally becomes part of the soil on its own over time—no composting required—and since they're made from a renewable resource that requires very little energy, they're earth-friendly too!

100% Guarantee

We offer a 100% unconditional guarantee for all our perennials to reach you in good condition and to grow. If you're not satisfied, we'll reship or refund immediately. Please don't hesitate to contact us if you have questions or concerns—we share your passion for gardening and want your new plants to thrive in your border!

Shipping Details

We use custom, earth-friendly packaging to make sure your order arrives in great condition, and we ship based on the best planting time for your growing zone (see the approximate dates below), unless otherwise indicated at checkout. If you wish, you can indicate a specific ship date during checkout.

Spring

  • Zone 3, 4: Early to Mid May
  • Zone 5: Late April to Early May
  • Zone 6: Mid to Late April
  • Zone 7: Early to Mid April
  • Zone 8: Late March to Early April
  • Zone 9, 10: Late March

Fall

  • Zone 2, 3, 4: Early September
  • Zone 5: Early to Mid September
  • Zone 6: Mid September
  • Zone 7: Mid to Late September
  • Zone 8, 9, 10: Late September to Early October

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