Start indoors 8-10 weeks prior to the last frost. Sow seed ¼” deep and provide a soil temperature of 24°C (75°F) with even moisture. Thin and transplant young seedlings once they reach 2" tall into 2¼" Jiffy pots. After all risk of frost, seedlings may be set in a trench about 5" deep, filling in enough soil to cover the roots. Space plants 6" apart in rows 24" apart. Gradually fill the trenches in during the season. Planting this way blanches the shaft. Can be direct seeded after risk of frost. As the plants grow be sure to hoe the soil up around the plants during the season to blanch the shaft.
Leeks prefer full sun and a soil pH of 6.0-6.5. They are moderate feeders and require very deep, rich soil. Add compost and well rotted manure prior to planting. Use mulch to conserve moisture and to keep the weeds down. Good soil moisture helps to keep the stems tender and juicy. Water during dry spells.
Harvest in late summer or early fall before frost. The shafts should be 1½"-2" in diameter. Mulch with straw if frost threatens.
Pests & Diseases:
Rarely troubled by pests.
Bush bean, beet, carrot, celery, garlic, onion, parsley, tomato.