Yoke-leaved amicia

Perennial · Subshrub

Amicia zygomeris

Yoke-leaved amicia

A tall perennial with unusual paired leaflets, purple stipules and late yellow pea flowers.

  • Full sun
  • 1.5–2.5 m (5–8 ft)
  • 1–1.5 m (3–5 ft)
  • H4 · Zone 8
  • September–October
  • Deciduous

Overview

This Mexican perennial forms upright stems with four rounded, notched leaflets and conspicuous purple-red stipules. Yellow pea flowers appear late in the season. Stems may die back in frost, but an established, mulched crown can regrow where soil is well drained.

At a Glance

Sun Full sun
Height 1.5–2.5 m (5–8 ft)
Spread 1–1.5 m (3–5 ft)
Hardiness H4 · Zone 8
Flowers September–October
Soil Chalk, Loam, Sand
Moisture Moist well drained
Habit Clump forming, Upright
Water Moderate
Maintenance Moderate

Growing Conditions

Min. Temperature -10°C (14°F)
pH Range 6–8
Fertility Fertile
Drainage Free Draining

Aspect Suitability

  • South-facing
  • West-facing

Soil Tolerance

  • Chalk
  • Sandy
  • Loam
  • Acid
  • Neutral pH
  • Alkaline

Foliage

Persistence Deciduous
Colour Green
Leaf shape / texture pinnate_four_leaflets
  • Architectural foliage

Foliage interest: May–November

Seasonal Timeline

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowering
Foliage
Fruiting
Propagate
  • Flowering Sep Oct
  • Foliage May Jun Jul Aug Sep Oct Nov
  • Fruiting Oct Nov
  • Propagate Mar Apr May Jun

Maintenance Calendar

  • Apr Remove dead stems after frost and when regrowth is visible
  • May Apply a balanced feed and water during establishment
  • Jun Support tall stems before they lean
  • Jul Water deeply during dry spells
  • Nov Mulch the crown deeply with dry organic material

Garden Design

Works well in: Cottage, Modern / Contemporary, Tropical / Exotic

Use at the back of a sheltered border. The late flowers need a warm autumn; foliage is the more dependable feature.

Companion planting: Cannas, Gingers, Ornamental grasses

Wildlife Value

  • Bees
  • Shelter
  • Food source
  • Food

Safety

Species-specific toxicity is poorly documented; do not eat leaves or seeds.