The Growing Place
Sugar Rush™ Primrose Wallflower
Erysimum 'Sugar Rush Primrose'
Sugar Rush™ Primrose Wallflower flowers
(Photo courtesy of NetPS Plant Finder)
Height: 10 inches
Spacing: 8 inches
Hardiness Zone: 5b
Other Names: Siberian Wallflower
Group/Class: Sugar Rush Series
Brand: Syngenta Flowers
Fragrant, yellow to cream flowers bloom in spring, then again in fall over dark green foliage; a self-seeding biennial, but can be planted annually; vigorous, drought resistant, and great for containers, beds, or borders; deadhead after flowering
Sugar Rush™ Primrose Wallflower features showy clusters of fragrant yellow flowers with buttery yellow overtones rising above the foliage from early spring to mid fall. Its narrow leaves remain dark green in color throughout the season.
Sugar Rush™ Primrose Wallflower is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This is a high maintenance plant that will require regular care and upkeep, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting bees and butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Sugar Rush™ Primrose Wallflower is recommended for the following landscape applications;
- Mass Planting
- Rock/Alpine Gardens
- Border Edging
- General Garden Use
- Container Planting
Planting & Growing
Sugar Rush™ Primrose Wallflower will grow to be about 8 inches tall at maturity, with a spread of 10 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 8 inches apart. Its foliage tends to remain low and dense right to the ground. It grows at a fast rate, and tends to be biennial, meaning that it puts on vegetative growth the first year, flowers the second, and then dies. However, this variety tends to self-seed and will thereby endure for years in the garden if allowed, although because it is a hybrid, the seedlings may not come true to type. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!
This plant does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is not particular as to soil type, but has a definite preference for alkaline soils. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid.
Sugar Rush™ Primrose Wallflower is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the larger thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.