About
Heuchera micrantha, the small-leaved alum root, is a clump-forming perennial producing fine, airy sprays of tiny white or pink flowers held high above the foliage in late spring and early summer. The mound of lobed, toothed, hairy leaves is quite variable � green, reddish or purple � giving multi-season appeal. A popular and ornamental heuchera for a shaded border.
About the genus
Heuchera are evergreen or semi-evergreen, clump-forming perennials with rounded, palmately lobed leaves and wiry-stemmed racemes or panicles of small, tubular flowers in summer. Popular as much for their ornamental foliage as their flowers, they excel as ground cover in shaded borders.
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Loam, Sand
Soil pHNeutral
Soil moistureWell-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageEvergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCoastal, Cottage and informal garden, Gravel garden, Patio and container plants, Rock garden
Care notes
CultivationPrefers a light to medium soil with excellent drainage, in full sun or light shade. Divide and replant every 3-4 years to maintain vigour
PruningRemove faded flower spikes
PropagationPropagate by seed or by division in autumn
Pest resistanceMay be susceptible to leaf and bud eelworm and vine weevil
Disease resistanceMay be susceptible to heuchera rust and leafy gall