Heuchera maxima (Island Alum Root)

Written By Anna Barnett
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Heuchera maxima
Island Alum Root

Characteristics

Height: 1 - 2 ft

Width: 2 ft

Hardiness: Very Hardy

Natural Setting: Endemic to the northern Channel Islands where it’s found in chaparral or coastal sage scrub on rocky or sandy cliffs and sea bluffs³

Plant Type: Perennial, Groundcover

Dormancy: Evergreen

Growth Rate: Moderate

Flower Season: Winter-Spring

Soil: Fast draining

Sun Exposure: Along the coast: full sun, partial shade, or full shade. Inland: Full or partial shade

Water Requirements: Low once established

Cold Tolerance: Tolerates cold to 12° F

 

Overview

Endemic to the Channel Islands where it grows on rocky or sandy cliffs. Good for coastal and woodland gardens as a groundcover in full sun or partial shade.

Anecdotal Experiences

  • Extended blooming season especially coastally

  • Doesn’t need any supplemental water once established, does fine with 2x month or less

 
 
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Anna Barnett
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Heteromeles arbutifolia (Toyon)