Bell Pepper in May: monthly care

Bell peppers (Capsicum annuum) are tender, heat-loving vegetables that need full sun and warm conditions to crop well. In temperate Europe they're best started indoors from seed in March or early April, then planted out once all risk of frost has passed—typically mid-May in most areas, though you may need to wait until late May in cooler regions. Choose a sheltered spot in full sun, ideally against a south-facing wall or in a greenhouse or polytunnel where heat accumulates. Prepare the soil by digging in plenty of well-rotted compost or manure a few weeks before planting. Bell peppers prefer loam or sandy soil that drains freely but holds moisture; heavy clay should be improved with organic matter and grit. The soil should be slightly acidic to neutral (pH 6.0–7.0). Space plants 40 cm apart in rows or blocks to allow good air circulation and room for the bushy growth. Plant out only when seedlings have at least four true leaves and nighttime temperatures stay reliably above 10°C. Dig a hole slightly larger than the root ball, set the plant at the same depth it was growing in its pot, firm gently, and water in well. If growing outdoors, consider using cloches or fleece for the first week or two to help plants settle. Insert a short cane or stake at planting time if you're growing taller varieties; tie the main stem loosely as it grows. Mulch around the base with compost or straw to conserve moisture and suppress weeds, keeping the mulch a few centimetres clear of the stem to prevent rot.

Bell peppers have moderate water needs but dislike both drought and waterlogging. Water regularly and consistently throughout the growing season, aiming to keep the soil evenly moist. In hot, dry spells from June to August you may need to water every day, especially for container-grown plants or those in greenhouses. Inconsistent watering causes blossom end rot (dark, sunken patches on the fruit base) and can lead to fruit splitting. Water at the base of the plant in the morning to keep foliage dry and reduce fungal disease risk. Feed every two weeks from May through July with a high-potassium liquid fertiliser, such as tomato feed, once the first fruits begin to form. Before that, a balanced general-purpose feed supports leafy growth. Stop feeding in August to allow plants to focus on ripening existing fruit. Bell peppers are not hardy and will not survive frost. In our climate they're grown as annuals; plants will die back with the first autumn frosts, so harvest all remaining fruit—even green ones—before cold weather arrives in October. If growing in pots, you can move plants under cover to extend the season slightly. Watch for aphids, which cluster on new growth and under leaves; spray with soapy water or squash by hand. Whitefly can be a problem in greenhouses—use yellow sticky traps and ensure good ventilation. Blossom end rot is a physiological disorder caused by calcium deficiency linked to irregular watering, not a disease. Maintain a 5 cm layer of mulch around plants to conserve moisture and regulate soil temperature throughout summer.