Garlic Growing Guide Crop Rotation Group Allium (Onion family) ● Soil Fertile, well-drained soil with plenty of compost added. Position Sunny. Frost tolerant Yes. Feeding Not usually required. Companions Tomato, Apple, Apricot, Plum, Cherry, Pear, Peach, Raspberry, Red Currant and Gooseberry. Spacing Single Plants: 5" (15cm) each way (minimum) Rows: 3" (10cm) with 9" (25cm) row gap (minimum) Sow and Plant In fall, plant individual cloves 4 inches deep with the pointed ends up. Cover the planting with at least 3 inches of mulch. Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area. Notes Use hardy Rocambole types in cold climates. Where winters are mild, grow heavy-yielding artichoke types. Among the most deer-resistant of all edibles. Harvesting Dig up bulbs in summer when one third of the leaves become dry and lose their green color. Shake off soil, and cure whole plants dry in a warm, shady place for two weeks before trimming and storing the garlic bulbs. Troubleshooting Watch for winter weeds. Plants left in the ground too long often have loose bulbs that do not store well. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Garlic Aphids (General) Onion Root Maggot Slug Snail Plant Diseases which Affect Garlic Allium White Rot Onion Downy Mildew Onion Pink Root