Eastern redbud

Sun

Full sun to partial shade; afternoon shade helps in hot, dry climates. Flowering is usually strongest in sun.

Water

Moderate; keep the root zone evenly moist while establishing. Established trees tolerate short dry spells, but prolonged drought can cause leaf scorch and branch dieback.

Soil

Well-drained soil, from sandy loam to clay, provided water does not stand around the roots. Tolerates acidic to alkaline conditions.

Height

20-30 ft (6-9 m)

Spread

25-35 ft (7.6-10.7 m)

Flowers

Rosy-pink to pink-purple pea-like flowers in spring, usually March-May in the Northern Hemisphere and September-November in the Southern Hemisphere, before the leaves open.

Foliage

Broad, heart-shaped leaves emerge with bronze or reddish tones, turn green in summer, and usually become yellow in autumn.

Growth

Moderate, often 1-2 ft (0.3-0.6 m) a year when young and well established.

Care needed

Low

• Plant while dormant or in mild weather, keeping the root flare at soil level; choose the permanent position because established trees transplant poorly.
• Water deeply during dry weather for the first two growing seasons, moistening the root zone rather than just the surface.
• Apply 2-3 in (5-8 cm) of organic mulch over the root area, keeping it clear of the trunk.
• Feed only if growth is weak and a soil test indicates a deficiency; avoid routine high-nitrogen feeding.
• Stake only if the root ball moves in wind, and remove supports after the first growing season.
• In cold regions, buy locally grown stock from a cold-hardy seed source rather than stock raised from southern populations.

Pruning. Prune lightly just after flowering to remove crossing branches and develop well-spaced main stems while the tree is young. Remove dead or diseased wood promptly in dry weather, and avoid topping or large cuts.

Late winter

Check young trees for rubbing ties, damaged branches and unstable stakes.

Spring

Plant container-grown trees once the ground is workable, then water thoroughly and mulch.

Late spring

After flowering, make any light formative pruning cuts and remove crossing shoots.

Summer

Water deeply during prolonged dry spells, especially while the tree is establishing.

Late summer

Inspect for branch dieback or sunken bark lesions; remove affected branches in dry weather.

Autumn

Plant in mild climates, refresh mulch, and remove unwanted seedlings while they are small.

• Use as a small lawn specimen where its spreading crown and flowers can be seen from the house.
• Plant at a woodland edge with flowering dogwood, ferns and woodland phlox for layered spring interest.
• Set against dark evergreens to make the pink flowers and yellow autumn leaves stand out.
• Place beside a broad path or terrace, allowing enough room for low, spreading branches without repeated pruning.

Garden styles it suits: Woodland, Wildlife garden, Pollinator garden, English country, Cottage garden and Traditional.

Plant it with: Flowering dogwood, Woodland phlox, Christmas fern, Wild columbine, Oakleaf hydrangea and Foamflower.

Wildlife: Spring flowers provide food for bees, including native bees in its North American range. Leaves support several moth caterpillars, and some birds eat the seeds. Deer may browse young trees.

• Canker causes sunken bark, dead twigs or whole-branch dieback: prune affected branches back to healthy wood, disinfect tools between cuts, and reduce drought stress. Trunk cankers may require removal of the tree.
• Verticillium wilt can cause sudden wilting and branch death: seek a diagnosis, maintain steady moisture, and remove severely affected trees; there is no reliable curative treatment.
• Leaf spots and anthracnose can blemish foliage: clear fallen leaves, avoid overhead watering and improve air circulation. Established trees rarely need fungicide.
• Drought stress or waterlogged soil can cause scorch, yellowing and dieback: water deeply during drought, but correct drainage rather than watering a tree whose soil is already wet.

Not known to be toxic to cats, dogs, horses or people. No part is recognized as a significant poisoning hazard; the flowers are edible, but eating substantial amounts of plant material can still cause digestive upset.

• Judas tree (Cercis siliquastrum)

  Its leaves are usually rounder with a rounded or shallowly notched tip, rather than the distinctly pointed, heart-shaped leaves of eastern redbud.

• Chinese redbud (Cercis chinensis)

  Usually forms a smaller, upright, multi-stemmed shrub with dense flower clusters and thicker, often glossier leaves; eastern redbud typically develops a broader tree-like crown.

Cercis comes from a Greek word for a weaver's shuttle, referring to the seed pod's shape, while canadensis means 'of Canada' and redbud describes the reddish flower buds.

Propagation. Grow from seed collected from mature brown pods. The hard seed coat needs scarification followed by moist chilling, commonly for about 8-12 weeks, before sowing. Seedlings vary; named cultivars are usually budded or grafted to preserve their characteristics.

Accepted botanical name

Cercis canadensis

In the US and Canada

Native in Canada and the lower 48 states.

Native range

Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas and Kentucky.

Measured

Soil pH 5 to 7.9. Average height 535 cm.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.