How to Grow Garlic

Garlic is one of the most rewarding crops in the home garden, demanding almost no attention after planting and producing a harvest 8–9 months later that stores for months. Unlike most vegetables, garlic is planted in fall, grows slowly through winter, then matures the following summer. This counter-seasonal habit lets gardeners use their beds productively when nothing else is growing, and the fall planting timing conveniently follows the harvest of summer crops.

Two main types dominate home gardens: softneck garlic (the braiding type, with excellent storage of 8–12 months, smaller cloves, and mild flavor) and hardneck garlic (with larger, more complex-flavored cloves, a central stalk that produces edible scapes, but shorter storage of 4–6 months). Hardneck varieties are better suited to northern climates with cold winters; softneck thrives in mild climates. Both are planted from individual cloves, not seeds.

Growing Tips

Choose the largest, firmest cloves from each garlic bulb for replanting. Larger cloves produce larger bulbs the following year. Consistent selection of the best cloves over multiple seasons gradually adapts the garlic to your specific growing conditions.
Harvest garlic scapes (the curling flower stalks that hardneck varieties produce in June) by cutting them off at the first curve. Scapes are excellent in stir-fries, pesto, and as a mild garlic-flavored vegetable. Removing them redirects energy from seed production to bulb sizing, potentially increasing bulb size 10–20%.
Harvest when 60–70% of lower leaves have yellowed and died back, but upper leaves remain green. This typically occurs June–August depending on zone and variety. Pull the entire plant; don't wait for all leaves to brown — overripe garlic has wrappers that deteriorate, reducing storage life.
Cure garlic by hanging bundles or spreading in a single layer in a shaded, well-ventilated location for 3–6 weeks. Proper curing is critical for long storage — uncured garlic rots within weeks. Fully cured garlic has dry, papery outer wrappers and a dry, hard stem.
Store cured garlic at 55–65°F with low humidity for the longest shelf life. Pantry storage (65–70°F) works for months. Avoid refrigerating uncured garlic — the cold temperature triggers sprouting. Fully cured softneck garlic stored in a mesh bag or braided can last 8–12 months.

Companion Planting

Garlic is most reliable as a rotation tool — its antimicrobial root compounds may suppress certain soil fungi when incorporated into rotation sequences. Fall-planted garlic occupies beds through spring, making it an important rotation marker. The planner helps you time garlic's fall planting with your summer crop harvest schedule.

FAQ

When should I plant garlic?

Plant garlic in fall — October to November in most of the US. In very cold zones (3–4), plant in late September to early October before the ground freezes. In warm zones (9–10), wait until November or December when temperatures cool. Garlic needs a cold period (vernalization) during winter to develop proper bulbs. Spring planting is possible but produces smaller bulbs.

How do I know when garlic is ready to harvest?

Harvest when the lower third to half of the plant's leaves have yellowed and died back, while upper leaves are still green. This typically occurs June through August depending on your zone and planting date. Don't wait for all leaves to die — the outer wrapper leaves deteriorate rapidly on fully mature bulbs, reducing storage life. When in doubt, dig up one test bulb to assess wrapper dryness and clove development.

Why are my garlic bulbs tiny?

Small garlic bulbs typically result from planting too small cloves, insufficient spring fertilization, drought during spring growth, or planting too late in fall (insufficient cold exposure). Plant the largest available cloves, fertilize in early spring when green growth resumes (a nitrogen fertilizer like fish emulsion works well), maintain consistent moisture through spring, and plant in fall at the right time for your zone.

What is the difference between hardneck and softneck garlic?

Hardneck garlic has a stiff central stalk, produces scapes in late spring, has fewer but larger and more complex-flavored cloves arranged in a single ring, and stores for 4–6 months. Softneck garlic has no central stalk (allowing braiding), has more cloves per bulb arranged in multiple rings, milder flavor, and stores 8–12 months. Hardneck types need colder winters; softneck adapts better to mild climates.

Can I plant garlic from the grocery store?

You can, but with significant caveats. Grocery store garlic is often treated with sprout inhibitors, may be from China (where many US garlic imports originate) and not adapted to your climate, and carries unknown disease history. For best results, purchase certified disease-free seed garlic from a reputable supplier or local nursery, ideally a variety selected for your climate. The yield difference between quality seed garlic and grocery store garlic can be substantial.