Cushion Spurge

Overview

• Botanical name: Euphorbia polychroma (synonym E. epithymoides) commonly called CushionSpurge.

• Habit: Forms a compact, dome or cushionshaped mound roughly 1218inches tall and 1224inches wide in typical conditions.

• Key features: In spring, bright sulphuryellow to chartreuse bracts (not true petals) top the mound. The foliage then persists through summer, and in fall the leaves may turn reddish, burgundy or orange, offering multiseason interest.

• Tolerances: Droughttolerant once established, deer and rabbit resistance noted.

• Caution: All parts contain milky sap which may irritate skin and eyes; use gloves when handling.

Light & Site Requirements

• Sunlight: Best in full sun (6+ hours/day). In hotter regions, some afternoon shade is beneficial to maintain foliage color and shape.

• Soil: Prefers welldrained soil, tolerates poor soils (sandy, rocky, low fertility) very well. Avoid sites that stay soggy or where water collects around the crown.

• Drainage & location: Excellent drainage is essential; poor drainage is the most common reason for failure.

• Spacing: Allow about 1218inches (3045cm) spacing to let the plant form its cushion habit and maintain good airflow.

Watering & Maintenance

• Establishment (first season): Water regularly while roots develop; aim to keep soil moderately moist but not waterlogged.

• Once established: Tolerates drought; reduce watering and let soil dry somewhat between waterings.

• Pruning / Deadheading: After flowering in spring, you may remove spent flower heads or cut back by about onethird to maintain shape and reduce selfseeding.

• Division: Only occasionally needed; plant doesnt like to be moved frequently. Divide in spring if it becomes large or the centre opens up.

ColdClimate / Zone3 Considerations

• While many references list hardiness as Zones48, with the proper site (full sun, excellent drainage, sheltered from heavy winter moisture) CushionSpurge can succeed in Zone3 gardens.

• Important: avoid low spots that collect meltwater, ensure soil is freedraining, and consider light mulch after freeze if site is exposed.

• Because of its drought tolerance and low maintenance, its a strong performer for prairie/sunintense landscapes.

Photo from gardenia.net