Katsura tree
Cercidiphyllum japonicum · Cercidiphyllaceae
📷 663highland · CC BY 2.5
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around katsura tree and prepare for winter.
ID card
- Foliage
- Deciduous
- Flowering
- March to April, discreet reddish flowers
- Adult size
- 10 to 12 m in height
- Growth
- Moderate to fast
- Hardiness
- Hardy down to -20 °C
- Origin
- Japan and China
- Soil type
- Humus-rich, well-drained, slightly acidic
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Cercidiphyllum loves partial shade and consistent soil moisture (without waterlogging). North-facing or semi-shaded exposure is ideal.
The common mistake
Planting it in full sun in warm climates: the leaves scorch, pale, and the tree comes out of dormancy late.
The pro's trick
Mulch generously in April (5-7cm fine compost): this maintains root coolness and enriches the soil gradually.
Seasonal watch
In autumn, the foliage changes colour (gold, rust) and releases a subtle caramel scent: magnificent.
Care
Watering
Water regularly during the first two years to encourage rooting. During the growing season, keep the soil moist but not waterlogged. Reduce watering in winter. Good mulching helps retain soil moisture.
Light exposure
Place your cercidiphyllum in partial shade or indirect light. It appreciates sheltered locations away from wind and intense afternoon sun. Light shade in warm regions is beneficial.
Soil
Choose rich, well-structured soil that is slightly acidic. Adding compost or peat improves water retention. Ensure good drainage to prevent root rot.
Pruning and shaping
Pruning is not essential; let the tree develop naturally into its pyramidal shape. Remove only dead, diseased, or awkward branches in late winter. Intervene sparingly to preserve the elegant form.
Fertilizer
Apply a balanced fertilizer in spring when growth resumes. Well-decomposed compost lightly worked into the soil at the base is usually sufficient. Avoid excess fertilizer which promotes unbalanced growth.
Diseases and pests
Cercidiphyllum is generally very healthy. Watch for spider mites in dry, warm climates. Good drainage prevents root rot. Adequate spacing and good air circulation promote prevention.
Did you know?
Cercidiphyllum japonicum is remarkable for its spectacular autumn foliage: its small heart-shaped leaves turn golden yellow then purplish-pink before falling. In autumn, it also releases a distinctive sweet fragrance reminiscent of caramel and molasses, a rare phenomenon among ornamental trees that makes this tree particularly prized by botanical collectors.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.