Botanic Garden >> Gardening > >> Question and Answer >> Plant Species >> Perennials

Astilbe Scorch in Full Sun: Move to Part Shade

A Massachusetts gardener's new astilbes browned at edges with 8 hours of sun. Expert confirms: too much sun.

Fix

Move now to a spot with 5-6 hours max, preferably morning sun. Water well. They'll acclimate. Massachusetts summers are cooler, so they may tolerate more sun once established, but part shade is ideal.

Ideal Conditions

Moist, rich soil
Dappled shade / morning sun only
Mulch to conserve moisture

Perennials: Mystery Worms in 3rd Floor Chicago Condo: Need Identification First; Caterpillars on House: Wrong Expert Category; Should You Remove Old Canes on Deciduous Dendrobiums?; New African Violet Leaves Growing in Yellow: Nutrient Deficiency or Variety Trait?; Astilbe Dormancy: When to Cut Back and How to Prevent Summer Decline; Growing Ranunculus Successfully; Coral Bells Not Flowering: They Need More Sun; Columbine Post‑Bloom Care: Leave Foliage Until Fall; Calla Lily Hardiness in Southern Indiana; Why Hydrangea Mopheads Fail to Open: Soil, Fertilizer, Climate, and Pest Checks

Garden Articles

Bougainvillea Leaf and Bloom Burn in Ground

Snapdragon Frost Tolerance and Self-Seeding Habits

Why Hydrangeas Failed to Bloom: Fertilizer Burn or Something Else?

Identifying Mealybugs or Adelgids on Pruned Shrubs

Garlic Near Squash: Bee-Safe Pest Deterrent

Small Cauliflower Heads Opening Prematurely: Pot Size or Early Planting

Identifying Small Brown Worms in Pond Filters: Harmless or Harmful?

Plants

Why Are My Hydrangea Blossoms Turning Brown and Rusty?

Roadside Wildflower: Spiderwort (Tradescantia ohiensis)

Verbena Declining in Southwest Florida Container

Reviving Stagnant Potato Vine (Solanum jasminoides) in Texas

Reviving Overcrowded Lilies: Division and Soil Amendments for Better Blooms

Fuchsia Care: Encouraging Blooms on Overwintered Plants

Hostas Declining After Five Years: Causes and Remedies