Heuchera micrantha

RHS Plant Profile
small-leaved alum root
small-leaved alum root visionspictures.com

Other common names

crevice alumroot

Herbaceous Perennial

A clump-forming perennial forming a low mound of lobed and toothed leaves, often covered with tiny hairs. The species is quite variable and leaves can be green, reddish or purple. Produces fine, airy sprays of tiny white or pink flowers, held high above the foliage in late spring and early summer

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H5
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Saxifragaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Genus
Heuchera are more or less evergreen, clump-forming perennials with attractive, rounded, shallowly palmately lobed leaves and racemes or panicles of small, tubular flowers, often with colourful calyces
Name Status
Correct

How to Grow

Cultivation

Prefers a light to medium soil with excellent drainage, in full sun or light shade. Divide and replant every 3-4 years to maintain vigour

Propagation

Propagate by seed or by division in autumn

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Rock garden
  • Garden edging
  • Ground cover

Pruning

Remove faded flower spikes

Pests

May be susceptible to leaf and bud eelworm and vine weevil

Diseases

May be susceptible to heuchera rust and leafy gall