Siberian Wallflower
Erysimum x allionii

Family: Brassicaceae or Cruciferae

What it is like

Erysimum x allionii is a PERENNIAL growing to 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 7 and is not frost tender. It is in flower from May to June. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. It is noted for attracting wildlife. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.

Height (m): 0.3

Where it is found

Not known in a truly wild situation.

A hybrid species of garden origin.

Conservation Status:

Countries/locations it is found in

How it is used

Food

Rating: 0

Medicine

Rating: 0

Other

Rating:

Attracts Wildlife: Plants noted for attracting wildlife

How it is grown

Prefers a position in full sun in a circumneutral soil. Succeeds in ordinary garden soils, tolerating poor soils. Plants are liable to die out if the soil is too rich. This species currently does not have a legitimate name(1999), it is a hybrid of garden origin, possibly E. capitatum x E. hieraciifolium. A perennial, it is usually grown as a biennial in the flower garden for spring and early summer bedding. A very ornamental plant, it is liable to die out after flowering, probably because it exhausts itself. A good butterfly plant.

Propagating it: Seed - sow late spring in an outdoor seedbed. The seed usually germinates in 1 - 3 weeks. Transplant into their permanent positions in late summer. The taproot can be broken in order to encourage fibrous roots.

Best place to grow: Cultivated Beds; East Wall. In. South Wall. In. West Wall. In.

Habit: Perennial

Hardiness: 6-9

Growth:

Soil: Light (sandy), medium, heavy (clay)

Shade: No shade

Moisture: Dry, moist

Things to keep in mind

Its other names

Local names

Synonyms

Cheiranthus x allionii