Caring for Weeping Willow

Weeping willows have high water needs and perform best in consistently moist or even wet soil. Water young trees deeply and regularly during their first two years, especially from April to September. Established trees near natural water sources usually need no supplementary watering, but those in drier spots benefit from thorough soaking during prolonged dry spells in summer. Avoid letting the root zone dry out completely. Feed in March and April with a balanced general-purpose fertiliser or a slow-release tree and shrub feed applied around the drip line (the outer edge of the canopy). A 5 cm top-up of organic mulch such as well-rotted manure or compost in early spring also provides nutrients and helps retain moisture. Avoid high-nitrogen feeds after mid-summer, as soft late growth is vulnerable to frost. Weeping willows are fully hardy across zones 4a–9b and need no winter protection. They naturally drop their leaves in autumn; rake these up if they smother smaller plants, but leaving some as mulch benefits soil life. Common problems include aphids, which cause sticky honeydew and sooty mould on foliage in spring and summer—spray with an insecticidal soap if infestations are severe. Willow anthracnose (a fungal disease) can cause dark spots and early leaf drop in wet seasons; improve air circulation through pruning and clear fallen leaves promptly. Canker and dieback sometimes affect stressed or waterlogged trees; prune out affected branches and improve drainage if possible. Weeping willows are generally robust but grow fast, so monitor for structural issues and keep the base clear of weeds and grass competition.