Astilbe 'Glow' ('Glut') |
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Photo Courtesy of Walters Gardens, Inc.
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| | Common Name: Astilbe-Hybrid
Common Name (Alternative): False Spirea |
- Very dark red buds open to reveal striking, deep red flowers with rose highlights; they truly glow as their name implies
- Flower plumes are narrowly triangular and are held upright
- Blooms in midsummer
- Leaves are bronze-red in spring, turning mid-green by summer
A member of Astilbe x arendsii (Hybrid Astilbe/False Spirea). A group of hybrids developed by famed German nurseryman George Arends. Includes crosses between A. chinensis var. davidii with A. astilboides, A. japonica, and A. thunbergii. The resulting hybrids comprise over 95% of all Astilbe sold in the USA.
Origin: Not Native to North America
Characteristics:
Height:
30 Inches
Spread:
18-24 Inches
Flower Color:
Red shades
Foliage Color:
Green shades
Sun or Shade?:
Full sun (> 6 hrs. direct sun)
Part shade (4-6 hrs. direct sun)
Full shade (< 4 hrs. direct sun)
Wet or dry?:
Average water needs
Consistent water needs
Need critter resistant plants?:
Deer resistant
Rabbit resistant
How fast should it grow?:
Medium
When should it bloom?:
Midsummer
How's your soil?:
Fertile Soil
Sweet or Sour Soil?:
Acidic Soil (pH < 7.0)
Neutral Soil (pH = 7.0)
What's your garden style?:
Container/Patio
Woodland/Shade
Eclectic
Astilbes are long-lived perennials that are most comfortable when grown in rich soil and light shade to filtered sun. They will grow in full shade, but will not bloom as prolifically there.
Though they are easy to grow, Astilbes have one critical requirement--lots of water. Plants must have consistently moist soil; dryness leads to a quick demise, especially in sun. Increase watering as the foliage emerges and the plumes mature. If the soil dries out, the leaves will develop brown, crispy margins and will begin to drop.
Fertilize Astilbes in late spring before flowering starts. Wait to cut back the old foliage until spring; it will help protect the plant from winter damage. In the spring, if the crown has risen above soil level, gently press it back into the ground and apply some organic matter around the plant.
The word "Astilbe" probably means "without showiness" in Greek, referring to the original flowers from China. Today's hybrids are definitely showy!