The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Coastal Wallflower
Erysimum capitatum is a Biennial/Perennial up to 0.60 metres tall.
It has uses.
Western N. America - British Columbia to Indiana, south to Texas and California.
Found in many habitats from southern British Columbia to California at 750 - 3600 metres[
]. Open dry flats and hillsides, from the lowest valleys to about 3,000 metres in the mountains[
Requires a well-drained soil and a sunny position[
]. Dislikes acid soils[
]. Tolerates poor soils[
]. Grows well on a sunny wall and is indeed longer lived in such a position[
A polymorphic species[
], it is possibly a form of E. asperum[
Seed - sow spring in an outdoor seedbed. Germination usually takes place within 3 weeks. Plant the seedlings into their permanent positions when they are large enough to handle.
If seed is in short supply, it can be sown in spring in pots in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in early summer.