It's great for planter baskets and bedding plants. Lathyrus odoratus ANNUAL. This packet contains approx 15 seeds. Height spread & features: Height 45 cm - spread 30 cm. When: Sow spring - summer - autumn. Where to grow: In a sheltered well-drained site in full sun. Where to sow: Direct where to grow. How: Sow seed in groups 2 cm deep in rows 30 cm apart. Care: Keep seedbed evenly moist during the germination period. Germination period 7-14 days. General: From sowing to flowering 12 weeks - spring-summer. Remove spent flowers to encourage new blooms.