Woolly sewervine
Paederia lanuginosa · Rubiaceae
The gardener's calendar
Woolly sewervine is in full bloom: enjoy it, watch watering in hot weather and let spent flowers feed pollinators before pruning.
ID card
- Scientific name
- Paederia lanuginosa
- Family
- Rubiaceae
- Type
- Perennial climbing plant
- Foliage
- Deciduous to semi-persistent depending on climate
- Flowering
- July to September, small white-pink flowers
- Mature height
- 150 cm (150 to 180 cm with support)
- Hardiness
- Temperate to warm zones (protect in cold regions)
- Origin
- Southeast Asia
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Plant Paederia lanuginosa against a support or structure: it twines gently and won't climb on its own. Fresh, well-structured soil helps, but it also tolerates relative drought once established.
The common mistake
Gardeners often see it as a vigorous vine when it actually climbs very slowly and stays weak if you don't actively support it or pinch it back regularly.
The pro's trick
Use a light trellis or ropes: Paederia twines better around thin structures than thick tubes.
Care
Light exposure
Plant Paederia lanuginosa in part shade or dappled light for optimal flowering. This plant dislikes overly sunny and scorching exposures. It appreciates a bright location but protected from direct afternoon rays.
Watering
Keep the substrate regularly moist during growth, without waterlogging. Reduce watering in winter. Water ideally at the base, avoiding the foliage. In pots, check substrate moisture 2 to 3 times per week during the active season.
Soil and substrate
Use a rich, well-draining substrate that is slightly acidic and enriched with organic matter (leaf mould, compost). Good drainage prevents root rot. Loosen the soil at planting to facilitate initial rooting.
Pruning and training
Pinch back young shoots regularly to encourage branching and dense growth. Prune after flowering (September-October) to remove weak wood and shape the plant. Install a stake or trellis at planting to guide growth.
Fertilizing
Apply a balanced or potassium-rich fertilizer from May to August, every 15 days in pots or monthly in the ground. Reduce or stop feeding in winter. An application of well-rotted compost in spring is often sufficient for plants in the ground.
Pests and diseases
Watch for powdery mildew in hot, dry weather; ensure good air circulation around the plant and avoid overhead watering. Mealybugs and spider mites may appear in overly dry conditions: increase ambient humidity. Good drainage and air circulation help prevent root rot.
Did you know?
Paederia lanuginosa is nicknamed in Asia the "bad-smelling plant": its leaves release a very characteristic and unpleasant odor when crushed, which is a remarkable natural defense against herbivores. Despite this olfactory peculiarity, it is highly valued by Asian gardeners for its fragrant and delicate late-summer flowering.
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.