annual

Diamond Mountain® Euphorbia

Euphorbia 'Diamond Mountain'

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Diamond Mountain Euphorbia (Euphorbia 'Diamond Mountain') at Sunnyside Nursery

Diamond Mountain® Euphorbia flowers

Diamond Mountain® Euphorbia flowers

(Photo courtesy of NetPS Plant Finder)

Diamond Mountain Euphorbia (Euphorbia 'Diamond Mountain') at Sunnyside Nursery

Diamond Mountain® Euphorbia in bloom

Diamond Mountain® Euphorbia in bloom

(Photo courtesy of NetPS Plant Finder)

Diamond Mountain Euphorbia (Euphorbia 'Diamond Mountain') at Sunnyside Nursery

Diamond Mountain® Euphorbia flowers

Diamond Mountain® Euphorbia flowers

(Photo courtesy of NetPS Plant Finder)

Height:  3 feet

Spacing:  18 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Brand:  Proven Winners

Description:

A vigorous, low maintenance plant that produces billowing clouds of dainty white flowers all season; heat and drought tolerant; great alone or in combinations, in all container types and landscapes; ideal filler plant

Ornamental Features

Diamond Mountain® Euphorbia features dainty clusters of white flowers at the ends of the stems from mid spring to mid fall. The flowers are excellent for cutting. Its small oval leaves remain green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Diamond Mountain® Euphorbia is an open herbaceous annual with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

This is a relatively low maintenance plant, and should not require much pruning, except when necessary, such as to remove dieback. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Diamond Mountain® Euphorbia is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting
  • Hanging Baskets

Planting & Growing

Diamond Mountain® Euphorbia will grow to be about 3 feet tall at maturity, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. This fast-growing annual will normally live for one full growing season, needing replacement the following year.

This plant does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid, and parts of it are known to be toxic to humans and animals, so care should be exercised in planting it around children and pets. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Diamond Mountain® Euphorbia is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Container  Basket 
Applications
Flowers  Texture 
Ornamental Features