Saran Raven seed packet says... Erysimum cheiri 'Vulcan' Perfect for Spring arrangements this one's a lovely deep red. H. 45-60cm 18-24in. Sow seed outside May-July. Transplant to final flowering position late Summer/early Autumn. Can be sown under cover. Final thinning distance 30cm.
Harvesting: Flowers next March. Flower production - 3 months. Vase life - 7 days.