Harvesting Mint

Mint has high water needs and performs best when the soil is kept consistently moist. Water regularly throughout the growing season, especially during dry spells in late spring and summer. In hot weather, check containers daily, as mint in pots can dry out quickly and will rapidly wilt if neglected. Reduce watering frequency in autumn and winter when growth slows, but don't let the soil dry out completely. Feed once in April with a balanced general-purpose fertiliser or a top-dressing of well-rotted compost or pelleted chicken manure. Mint is not a heavy feeder, and excessive nitrogen can produce lush but flavourless foliage, so a single spring application is sufficient. Container-grown plants may benefit from a second, lighter feed in mid-summer if growth appears weak. Mint is fully hardy across zones 3a to 9b and requires no winter protection outdoors. Top growth dies back in late autumn; simply cut it down and allow the roots to overwinter in the soil. Potted mint can stay outside year-round, though in very cold winters you may want to move containers against a sheltered wall to prevent the compost freezing solid. Common pests include mint beetle, whose larvae skeletonise leaves in summer, and aphids, which cluster on shoot tips. Pick off beetles by hand or tolerate minor damage; serious infestations are rare. Rust fungus causes orange pustules on leaves—remove and bin affected foliage promptly and thin congested clumps to improve air circulation. Mint is otherwise trouble-free and requires minimal intervention once established.