Astilbe Fails in Sun: Replace with Coral Bells (Heuchera)

A gardener's dwarf astilbe died 3 years in a sunny spot. Wanted similar-sized replacement. Advised: Heuchera (coral bells). Asked for care details.

Why Astilbe Failed

Astilbes need shade/part shade + constant moisture. Full sun = crispy, dead.

Heuchera (Coral Bells) – Perfect Substitute

• Size: 8–18" mound, similar to dwarf astilbe.
• Foliage: Stunning colors (purple, silver, caramel, chartreuse, near-black).
• Flowers: Airy bells on wiry stems (late spring). Coral, pink, white, red.
• Sun tolerance: Full sun to full shade (color best in part shade).
• Soil: Well-drained, average to rich. Hates wet clay.
• Hardiness: Zones 4–9.

Planting & Care

1. Planting: Hole deeper than pot. Loosen roots. Compost in bottom. Crown at soil level. Water in.
2. Water: 1" weekly if no rain. Drought-tolerant once established.
3. Mulch: 1–2" bark/compost. Keep off crown.
4. Fertilize: Light side-dressing composted manure in spring. No heavy feeding.
5. Division: Every 3 years (spring or fall). Cut woody center out; replant vigorous outer sections.

Top Cultivars

'Palace Purple', 'Caramel', 'Obsidian', 'Lime Rickey', 'Berry Smoothie', 'Forever Purple'.

Heuchera gives you foliage color all season + delicate flowers. Tough, versatile, widely available.