Tridax procumbens
Tridax procumbens · Asteraceae
The gardener's calendar
Ideal time to plant tridax procumbens: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Scientific name
- Tridax procumbens
- Family
- Asteraceae
- Type
- Annual or short-lived perennial herb
- Adult height
- 15 to 40 cm tall
- Flowering
- Year-round in warm climates, spring to autumn elsewhere
- Foliage
- Evergreen, semi-evergreen depending on climate
- Hardiness
- Frost-tender, prefers warm and temperate climates
- Origin
- Central and South America
Care
Exposure and light
Tridax procumbens thrives in direct sun, at least 6 to 8 hours per day. It tolerates partial shade but flowers less abundantly. Plant in a well-lit area for optimal growth and generous flowering.
Watering
Keep the soil regularly moist but avoid waterlogging. Reduce watering during cold periods or dormancy. In very dry climates, water more frequently and mulch around the base to retain moisture.
Soil and potting mix
Prefer well-draining, light to medium soil enriched with organic matter. A horticultural potting mix blended with sand works very well. Avoid heavy, compacted soils that promote root rot.
Fertilization
Apply balanced fertilizer every 15-20 days during the active growing period. Reduce or stop in winter. A diluted liquid fertilizer is ideal to avoid burning delicate roots.
Pruning and maintenance
Pinch back young stems regularly to encourage a bushy habit. Remove spent flowers to prolong blooming. Prune after winter to rejuvenate the plant or before overwintering.
Pests and diseases
Watch for spider mites and aphids in hot, dry conditions. Powdery mildew can appear if air humidity is too high. Ensure good air circulation and avoid wetting the foliage late in the day.
Did you know?
Tridax procumbens, known by the common names 'comet plant' or 'yellow tridax,' is native to Central America but has naturalized in many tropical and subtropical regions worldwide. In India, it has long been traditionally used in Ayurvedic medicine, demonstrating its botanical recognition far beyond its native region.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.