Onyx Heucherella
Heucherella
hyoo-ker-ELL-uh
Perennials: Foliage
Foamy Bells
Zone
4: -30° to -20°
Min. Temp
Hardy: 28°
A hybrid between Coral Bells and Foam Flower, combining the best traits of both into one plant. Foliage should be left alone in the fall, but plants may be tidied up in spring by removing any brown or tired-looking leaves.
Appearance
Summer Foliage
Purple
Fall Foliage
Purple
Flower Color
White
Blooming Time
Late Spring - Mid Summer
Habit
Mounding
Height
12–18 in
Spread
12–18 in
Form
Bell
Characteristics
Type
Hybrid
Safety
Non-toxic
Growth Rate
Moderate
Tolerance/Resistance
Cold Hardy
Attracts
Attracts Hummingbirds; Attracts Honeybees & Pollinators
Uses/Placement
Edging
Optimal Growing Conditions
Sun Exposure
Part Sun - Full Shade
Soil Texture
Loamy
Soil Drainage
Well-drained
Soil Moisture
Average to Moist
Soil PH
Slightly Acidic: 6.0-6.5
PH Tolerance
Prefers slightly acidic soil
Soil Amendment(s)
Compost
Fertilizer
Moderate Feeder
Fertilizer Formula
Balanced Fertilizer
Fertilizer Timing
Pre-Bloom
Micronutrients
Magnesium (Mg)
Care
Care Level
Moderate
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Benefits from Pollinators
Propagation Licensing
Trademarked cultivar
Division Timing
Spring or Fall Division