Variegated Wallflower.
Erysimum linifolium, Mustard Family: ( Brassicaceae ), Variegated Wallflower. Also called: Wallflower, Wallflower - Bowles Mauve, Cheiranthus linifolius, Spanish Wallflower, Flax Wallflower, Alpine wallflower.

Variegated Wallflower or Erysimum linifolium is a hardy, evergreen, perennial blooming from about April to September.

It has green variegated foliage.

Its flowers are purple,pink, or violet

It prefers normal/loam, sandy/light, or chalky/alkaline, well drained, moist to dry soils.

It makes an excellent xeriscape plant for colder areas in Arizona or other southwestern states.

Note: Even though this is a perennial. It is known to die off, about every three years. Most people who have grown the plant, consider it worth replanting, about every three years.

Quick Notes:

Height: 1 1/2 - 3 feet.

Flowers: Racemes of lilac to lavender-blue flowers with four petals.

Flowering Time: Spring - Late Summer.

Leaves: Narrow, lance-shaped, gray-green leaves with cream margins.

Found: Native of central Spain and north Portugal.

Elevation: 0 to 7,037 Feet.

Soil pH Requirements:

6.6 to 7.5 (neutral).
7.6 to 7.8 (mildly alkaline).
7.9 to 8.5 (alkaline).

Hardiness:

USDA Zone 3a: to -39.9 �C (-40 �F).
USDA Zone 3b: to -37.2 �C (-35 �F).
USDA Zone 4a: to -34.4 �C (-30 �F).
USDA Zone 4b: to -31.6 �C (-25 �F).
USDA Zone 5a: to -28.8 �C (-20 �F).
USDA Zone 5b: to -26.1 �C (-15 �F).
USDA Zone 6a: to -23.3 �C (-10 �F).
USDA Zone 6b: to -20.5 �C (-5 �F).
USDA Zone 7a: to -17.7 �C (0 �F).
USDA Zone 7b: to -14.9 �C (5 �F).
USDA Zone 8a: to -12.2 �C (10 �F).
USDA Zone 8b: to -9.4 �C (15 �F).
USDA Zone 9a: to -6.6 �C (20 �F).
USDA Zone 9b: to -3.8 �C (25 �F).

Habitat: Landscaping.

Pests and Diseases: Snails, slugs and caterpillars can damage the plants. Rust, downy mildew, mosaic virus and fungal leaf spots can occur. As with any member of the brassicaceae family, clubroot can be a problem.

Miscellaneous: Plant does not set seed, flowers are sterile, or plants will not come true from seed.