Lathyrus vernus, or Orobus vernus, or Lathyrus cyaneus is part of the Fabaceae family of plants. It is a herbaceous perennial, and native to Europe and Siberia. They also call it the Spring Vetchling, Spring Bitter Vetch, Bitter Vetch, Spring Pea, or Spring Vetch. It is compact, clump-forming, and bushy and grows to about 50cm or 20in tall.
Lathyrus vernus flowers in spring from March to June. It attracts bees and toxic to cats, dogs, and horses. The leaves are dark green and pinnate. The flowers grow on short racemes. Each raceme has about six reddish-purple flowers.
How to grow Lathyrus vernus:
Grow it in the sun, or partial shade. Plant Lathyrus vernus in rich, fertile, moist but well-drained soil. Propagate by division, early in spring. Deadhead the flowers, prune back to the ground in late autumn. Watch out for aphids, slugs, snails, thrips, powdery mildew, wilt, and viruses.