Plum Tree in March: monthly care

Plant bare-root plum trees between October and November or in March, while they are dormant. Container-grown specimens can go in during any of these months, though autumn planting gives roots time to establish before spring growth begins. Choose a sheltered spot in full sun—plums flower early and frost can damage blossom, so avoid frost pockets. They tolerate loam and clay soils well, provided drainage is reasonable; waterlogged ground encourages root diseases. Prepare the planting area by digging a hole roughly twice the width of the root ball and deep enough so the soil mark on the stem sits level with the surrounding ground. Break up compacted soil at the base and sides of the hole. If your soil is heavy clay, fork in some well-rotted compost or grit to improve structure, but don't over-enrich—plums are vigorous enough without excessive fertility. For bare-root trees, spread the roots out evenly; container-grown plants should have any circling roots gently teased apart. Backfill with the excavated soil, firming gently with your heel as you go to eliminate air pockets. Drive in a sturdy stake at an angle (to avoid the root ball) and secure the trunk with a tree tie, leaving room for growth. Space trees 400 cm apart to allow for their mature spread of 300–400 cm. Water thoroughly after planting—at least 10 litres per tree—and apply a 5–7 cm layer of well-rotted manure or compost as mulch around the base, keeping it clear of the trunk to prevent rot.

Water plum trees regularly during their first two growing seasons to help roots establish, especially in dry spells. Mature trees have moderate water needs but benefit from consistent moisture during fruit development in late spring and summer; give a thorough soak every 10–14 days if rainfall is scarce. Avoid erratic watering, which can cause fruit to split. Reduce watering after harvest in late August and September. Feed once a year in March with a balanced general-purpose fertiliser (such as Growmore) or a specific fruit fertiliser, scattering roughly 70–100 grams per square metre around the root zone. Alternatively, apply a 5 cm layer of well-rotted manure or compost as a mulch in early spring; this feeds the soil, suppresses weeds, and helps retain moisture. Keep mulch a few centimetres clear of the trunk. Plum trees are fully hardy in zones 5a–9a and need no special winter protection. However, late frosts can damage early spring blossom; if frost is forecast during flowering, drape fleece over smaller trees overnight or consider planting in a sheltered spot. Common pests include plum aphids, which cause leaf curl in spring—spray with an insecticidal soap if necessary. Plum fruit moth caterpillars tunnel into ripening fruit; pheromone traps can help monitor and reduce numbers. Watch for brown rot, which causes fruit to rot and mummify on the branch—remove and destroy affected fruit promptly. Silver leaf disease is the most serious threat; prune only in summer and remove any branches showing the characteristic silvery sheen on leaves, cutting back to healthy wood.

Water plum trees regularly during their first two growing seasons to help roots establish, especially in dry spells. Mature trees have moderate water needs but benefit from consistent moisture during fruit development in late spring and summer; give a thorough soak every 10–14 days if rainfall is scarce. Avoid erratic watering, which can cause fruit to split. Reduce watering after harvest in late August and September. Feed once a year in March with a balanced general-purpose fertiliser (such as Growmore) or a specific fruit fertiliser, scattering roughly 70–100 grams per square metre around the root zone. Alternatively, apply a 5 cm layer of well-rotted manure or compost as a mulch in early spring; this feeds the soil, suppresses weeds, and helps retain moisture. Keep mulch a few centimetres clear of the trunk. Plum trees are fully hardy in zones 5a–9a and need no special winter protection. However, late frosts can damage early spring blossom; if frost is forecast during flowering, drape fleece over smaller trees overnight or consider planting in a sheltered spot. Common pests include plum aphids, which cause leaf curl in spring—spray with an insecticidal soap if necessary. Plum fruit moth caterpillars tunnel into ripening fruit; pheromone traps can help monitor and reduce numbers. Watch for brown rot, which causes fruit to rot and mummify on the branch—remove and destroy affected fruit promptly. Silver leaf disease is the most serious threat; prune only in summer and remove any branches showing the characteristic silvery sheen on leaves, cutting back to healthy wood.