Botanical Name: Heuchera maxima
Common Name: Island alum root
Type of Plant: dicot: perennial
Character evergreen
 
Habit of Growth:
Overall Shape a low, clumping plant, with round leaves arising from a basal rhizome to form a rounded mound-like clump; plant is larger in form than Coral Bells (Heuchera sanguinea)
Height 6" - 18"
Spread 12" - 24"
Growth Rate slow
 
Environment:
Exposure outdoors tolerates full sun along the coast; requires partial sun habitats at inland locations
Soil prefers moist soils; is drought-tolerant near the coast
Hardiness hardy (zones 15-24): prefers mild shaded foothill locations
 
Morphology:
Leaves palmate, round or heart-shaped, with scalloped-lobed margins; medium-dark green, 2"-3" across, arising on slender petioles from the basal rhizome
Flowers white to pale pink, tubular, on slender stalks (racemes), 1'-3' long which arise above the foliage; February through May
Fruit a tiny capsule
 
Propagation:
seed, or division of the clump
 
Usage:
an attractive facer, herbaceous border or low filler for partial sun or shaded locations, valued for the distinctive round foliage and profusion of tiny flowers; best used in woodland or temperate-climate landscape themes; rock gardens, container plantings
 
Landscape Care:
Watering prefers frequent, but it quite drought-tolerant in shaded locations
Fertilizing little required after establishment
Pruning none required; older clumps may be divided and then replanted for denser form
Pests/Diseases snails and slugs if grown in wet habitat
Special Conditions/Other mass-plant for most dramatic effect foothills of Channel
 
Origin: Islands of California
Family: Saxifragaceae

Notes:
 
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