Climbing corydalis
Ceratocapnos claviculata · Papaveraceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around climbing corydalis and prepare for winter.
ID card
- Foliage
- Deciduous, finely cut and feathery
- Flowering
- April to September, cream-white or pale yellow flowers
- Mature size
- 1 to 2 m in height depending on support
- Growth
- Moderate to fast in favorable conditions
- Hardiness
- Low hardiness, grow in mild regions or as an annual
- Origin
- Western and southern Europe
- Soil type
- Well-drained, light soil, not too rich
Care
Watering
Keep the soil regularly moist during the growing season, but never waterlogged. In dry periods, increase watering frequency. Reduce watering in winter if the plant is being kept.
Light exposure
Place the climbing corydalis in partial shade or dappled shade to preserve the delicate color of its flowers. It tolerates morning sun but dislikes scorching afternoon exposure in hot climates.
Pruning and training
Guide the flexible stems onto a trellis, wire, or fence by tying them loosely. Remove dead or damaged stems in late winter. Pinch out young shoots to encourage branching.
Fertilizing
Apply a balanced fertilizer every 4 to 6 weeks during active growth (spring-summer). Avoid excess nitrogen, which would favor foliage at the expense of flowering.
Soil and substrate
Use a light, well-draining substrate enriched with peat or compost. Improve heavy soils with sand or perlite. Neutral to slightly acidic pH is ideal.
Diseases and pests
Watch for powdery mildew and root rot if humidity is excessive. Check regularly for aphids. Good air circulation and watering at the base reduce risks.
Did you know?
The climbing corydalis owes its scientific name Ceratocapnos to its curious tendrils that allow it to cling to supports, a rare botanical adaptation within the Papaveraceae family. In temperate Europe, it has become a prized pioneer plant for colonizing walls and fences in shaded areas, often self-seeding year after year thanks to its dehiscent capsules that release seeds at maturity.
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.
Add this plant to my garden →Plants from the same family
- Bleeding heartLamprocapnos spectabilis
- Corydalis flexuosaCorydalis flexuosa
- California poppyEschscholzia californica
- Opium poppyPapaver somniferum
- Solid-bulbed corydalisCorydalis solida
- BloodrootSanguinaria canadensis
Tips generated and checked by Viridia — adapt them to your local climate.