Days to Harvest: 40. This heat resistant lettuce produces tight clusters of medium green leaves shaped somewhat like oak leaves. Good flavour and tender texture. Sowing: Sow seeds in successive crops every 2 weeks from April on as long as weather is cool. Grows best in organic, well drained soils in sunny locations. Can be sown in rows, blocks or squares. Comments: Harvest by either pulling entire plant or by cutting leaves at least 3 cm (1″) above the base to encourage new leaf growth. Approx. 1900 sds/pkt.