I was on some allotments at the weekend and was struck how bare and scruffy they look at this time of year. We've passed the Spring equinox, but seedlings…
Grow garlic in an open, sunny spot, with well-drained soil. In areas with heavier soils, a raised bed is ideal. Garlic does not appreciate acid soils, so you might want to apply lime in the autumn before a spring planting, as well as avoiding fresh manure. Leaf mold or mushroom compost are ideal ways to improve humus levels without raising acidity.
The individual cloves can be planted 5cm deep in the autumn in warmer areas, or in spring. Bulbs can be potted up indoors for later planting (if one is liming the plot over winter).
Garlic will take up to 5 or 6 months to mature and can be harvested in the summer when the leaves have turned yellow.
This crop has an minimum optimum growing temperature of 18C and a maximum optimum growing temperature of 30C.
By bulblet (clove). Seeds have been produced in laboratory conditions but are rarely produced in the wild.
Pests, diseases or disorders
Leek rust, onion white rot, allium leaf-mining fly and leek moth.