Seven-son flower
Heptacodium miconioides · Caprifoliaceae
📷 Daderot · Public domain
The gardener's calendar
Seven-son flower is in full bloom: enjoy it, watch watering in hot weather and let spent flowers feed pollinators before pruning.
ID card
- Common name
- Seven-flower tree
- Family
- Caprifoliaceae
- Type
- Deciduous shrub
- Mature height
- 3 meters
- Flowering
- July to September
- Light exposure
- Partial shade to full sun
- Hardiness
- Zone 5 to 9 (-15 °C)
- Origin
- China
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Heptacodium miconioides loves partial shade, well-draining fresh soil. It's a shrub that flies under the radar in summer, then explodes with white flowers in late summer.
The common mistake
Planting in full blazing sun or dry soil: dull green foliage, skimpy flowering, increased pest susceptibility.
The pro's trick
Mulch generously right at planting and keep it up.
Seasonal watch
September-October: excessive moisture + open flowers = flower rot.
Care
Light exposure
The seven-flower tree thrives in partial shade but flowers more abundantly in full sun. Give it at least 4 to 5 hours of direct light daily for optimal flowering. It also tolerates partially shaded locations in warm climates.
Watering
Keep the soil regularly moist during the first year after planting. Once established, occasional watering is sufficient: water during prolonged dry spells, especially in summer. Avoid waterlogging, which could promote root rot.
Soil
This shrub appreciates well-drained, fertile soil. It adapts to most soil types, including slightly alkaline ones. Enrich the soil at planting time with compost or potting soil to optimize rooting.
Pruning and shaping
Prune lightly after flowering (September-October) to maintain an attractive shape. Remove dead or poorly oriented branches. Regular pruning encourages branching and ensures good density.
Fertilizing
A balanced fertilizer application in spring is generally sufficient. You can enrich with well-decomposed compost at the base each year. Avoid excess nitrogen, which would promote foliage at the expense of flowering.
Diseases and pests
The seven-flower tree is generally robust and rarely affected by diseases. However, monitor stagnant moisture that could cause fungal rots. Good air circulation and adequate drainage prevent most problems.
Did you know?
Native to the mountain forests of China, Heptacodium miconioides owes its name "seven-flower tree" to its pale pink-white flowers grouped in small clusters that bloom late in the season, sometimes until the first frosts. It's a true treasure for gardeners seeking delicate, late-season blooms.
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.