Gouden regen

Laburnum x watereri

Engels: Golden Chain Tree

shrubFabaceae

Gouden regen (Laburnum x watereri) is a shrub from the Fabaceae family that grows up to 7 meters tall. This plant thrives in full sun to partial shade and requires low maintenance. Blooms in late spring and early summer with yellow flowers and attracts bees.

Hoogte

400–700 cm

Breedte

300–500 cm

Zonligging

full sun, partial shade

Waterbehoefte

moderate

Grondsoort

loam, chalky soil, sandy soil

Onderhoud

low maintenance

Bloeitijd

late spring, early summer

Bloemkleuren

yellow

Ecologische waarde

Trekt bijen aan

Verzorgingskalender

Taak	Jan	Feb	Mrt	Apr	Mei	Jun	Jul	Aug	Sep	Okt	Nov	Dec
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Care tips

Planting

Golden chain tree thrives in full sun or partial shade, though flowering is most prolific in a sunny position sheltered from strong winds. It tolerates a wide range of soils—loam, chalky, or sandy—provided drainage is reasonable. Avoid waterlogged sites, as the roots dislike sitting in wet conditions over winter. Plant bare-root specimens in March, April, or from September to October when the soil is workable and not frozen. Container-grown trees can go in during the same months, though autumn planting gives roots time to establish before the growing season. Dig a hole twice the width of the root ball and roughly the same depth, breaking up compacted soil at the base to encourage drainage. If your soil is heavy clay, fork in coarse grit or horticultural sand to improve structure. Position the tree so the top of the root ball sits level with the surrounding soil—planting too deep can lead to stem rot. Backfill with the excavated soil, firming gently with your heel to eliminate air pockets. Space trees at least four metres apart to allow for their mature spread of three to five metres. Water thoroughly after planting, applying at least two full watering cans to settle the soil around the roots. Apply a 7–10 cm layer of well-rotted compost or bark mulch around the base, keeping it clear of the trunk itself to prevent rot. Stake young trees with a single angled stake and a tree tie if the site is exposed, checking and loosening the tie every few months as the trunk thickens.

Pruning

Golden chain tree requires very little pruning and resents heavy cutting, which can spoil its naturally elegant, weeping habit. The best time to prune is in March or April, just as the buds begin to swell but before the leaves fully expand. Pruning during the growing season risks excessive sap bleeding and invites disease. Use clean, sharp secateurs for stems up to pencil thickness and a pruning saw for anything larger. Focus on removing dead, damaged, or diseased wood first, cutting back to healthy tissue just above an outward-facing bud or side shoot. Take out any branches that cross or rub against each other, as wounds provide entry points for coral spot and other fungal infections. If the tree has become congested in the centre, thin out a few of the oldest or weakest branches to improve air circulation, but resist the temptation to open up the canopy drastically. Golden chain tree flowers on the previous year's growth, so over-enthusiastic pruning will reduce the following spring's display. Remove no more than one-fifth of the overall growth in any single year. Suckers occasionally appear at the base, especially on grafted specimens. Cut these off flush with the trunk as soon as you spot them, as they belong to the rootstock and will not produce the characteristic golden racemes. Spent flower clusters can be snipped off after blooming if you wish to tidy the appearance, though this is purely cosmetic and not essential for the tree's health.

Maintenance

Golden chain tree has moderate water needs and copes well with typical rainfall in temperate Europe once established. Water young trees during dry spells in their first two summers, applying a thorough soak every ten to fourteen days rather than frequent light sprinkles. Established specimens rarely need supplementary watering except during prolonged drought, when a deep watering every three weeks helps prevent leaf scorch. Feed in March or April with a general-purpose granular fertiliser such as blood, fish, and bone or Growmore, scattering a couple of handfuls around the root zone and lightly forking it into the soil surface. Avoid high-nitrogen feeds later in the season, as soft late growth is vulnerable to frost damage. A 5 cm top-up of mulch each spring conserves moisture and suppresses weeds without the need for additional feeding. Golden chain tree is fully hardy in zones 5a to 7b and requires no special winter protection. The main pest to watch for is aphids, which cluster on soft new growth in late spring; a strong jet of water usually dislodges them, or you can use an insecticidal soap if numbers are high. Leaf spot and powdery mildew occasionally appear in humid summers but rarely cause lasting harm—remove and bin affected leaves rather than composting them. All parts of the plant are toxic if ingested, particularly the seeds, so site it away from areas where children play and clear up fallen seed pods in autumn. Maintenance is otherwise minimal: an annual feed, a light tidy-up prune if needed, and occasional watering in drought are all this handsome tree asks for.