Foamflower

Tiarella cordifolia

Eastern North American native woodland perennial with maple-like leaves often marked with dark veins, and spires of tiny frothy white flowers above the foliage in late spring.

Hardiness ratings

Foamflower hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 3–8 −40 °C to −6.7 °C Plant tolerates down to this zone
RHS hardiness rating H7 down to −20 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 3–8 −34 °C to −1 °C Plant tolerates down to this zone
Australian (ANBG) zone Zone 1–5 −15 °C to 10 °C Plant tolerates down to this zone

Growing notes

  • Plant in dappled to deep shade as ground cover — spreads gently by stolons to form drifts
  • Native to eastern North American deciduous woodland — excellent natural shade-garden plant in its native range and in similar climates
  • Frothy white late-spring flower spikes are the source of the common name
  • Various cultivars (‘Pink Skyrocket’, ‘Sugar and Spice’, ‘Iron Butterfly’) for different leaf and flower colour

Categories

Related plants

Cross-check Foamflower against your zones

Reference

Foamflower on Wikipedia