Garden Scheme

Plant library  ·  Perennial Flowers

Cushion Spurge

Euphorbia polychroma

Cushion Spurge is a low, mounding perennial that brings brilliant yellow bracts to the garden from spring into early summer. Reaching about 18 inches tall and wide, it reads as a rounded mass rather than a vertical accent. Its compact scale makes it useful where a bed needs a clear, bright spring presence without obscuring plants behind it.

  • Pollinator friendly
  • Deer resistant
Sunlight Full Sun
Water Low
USDA zones 4–8
Spacing 1.5 ft
Mature size 1.5 ft tall, 1.5 ft wide
Bloom Spring - early summer

Placement and use

Set cushion spurge toward the front or middle of a sunny border, where its 18-inch mound can be seen from a path or patio. Use it to make repeated spring punctuation along a bed edge, leaving taller summer perennials behind it rather than crowding its outline. A dry, open planting pocket is more suitable than a low spot that collects winter moisture. Its deer-resistant character can also make it a practical choice for exposed border sections.

Spacing and mature footprint

Plant on 18-inch centers so each plant has room to develop its own rounded footprint at maturity. In a row beside a path, keep the planting line far enough back that the mature 18-inch width does not spill into circulation space. For a fuller block, stagger plants at the same 18-inch center-to-center interval rather than compressing the front edge.

Three plants set 1.5 ft apart, center to center; shaded circles show the 1.5 ft mature spread.

Sun, water, and soil

Give this perennial full sun and well-drained soil. Its low water needs suit parts of the garden that dry between rains, including raised beds, sloped borders, and rocky or sandy planting areas. Avoid sites that stay wet in winter, especially enclosed pockets where drainage is slow.

Seasonal notes

The yellow display is concentrated in spring and early summer, so reserve nearby space for plants that carry the bed later in the season. Spent flowering growth can be removed to limit unwanted self-seeding and keep the clump orderly. Plan access from the bed edge or path for this cleanup rather than burying the plant behind a dense summer layer.[1][2]

Growing facts

Botanical name
Euphorbia polychroma
Type
Perennial
Category
Perennial Flowers
Lifecycle
perennial
USDA hardiness zones
4–8
Sunlight
Full Sun
Water
Low
Plant spacing
1.5 ft
Mature size
1.5 ft tall, 1.5 ft wide
Bloom season
Spring - early summer
Pollinator friendly
Yes
Deer resistant
Yes
Native to North America
No

References

  1. Euphorbia polychroma - Plant Finder — Missouri Botanical Garden
  2. Many-Colored Spurge - Euphorbia epithymoides — North Carolina Extension Gardener Plant Toolbox

Editorial content updated 2026-07-20.