Large clammyweed (Polanisia erosa)

Large clammyweed

Large clammyweed is a small to large sticky but unscented annual herb of 10 to 60 cm. It has branched or unbranched, green or purple stems with seated glands and glandular hairs. The 0.3 to 1.5 mm long, green or purple leaf stalks are often at an angle with the leaf blade.

Scientific classification

Species

Large clammyweed (Polanisia erosa)

Mustards, capers, and allies

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Annual

Lifespan

Herb

Plant Type

Images of Large clammyweed

Care Guide for Large clammyweed

Twice per week

Water

Full sun

Sunlight

Water: Large clammyweed thrives in high humidity and moist soils, reflecting its native tropical rainforest habitat. Watering should occur twice weekly to maintain moisture. Mulching enhances soil retention, mimicking its natural leaf litter. While often grown outdoors, it exhibits moderate drought tolerance.

Fertilize: Large clammyweed thrives on balanced nutrition fertilizer, switching to high-nitrogen formulations at growth onset. Monthly applications during active growth are recommended, with seasonal adjustments for optimal year-round nutrition. Use diluted solutions to avoid nutrient overload and always wear gloves as large clammyweed's sap may irritate.

Pruning: Large clammyweed has sticky, glandular hairs and clusters of white to pink flowers. Prune in early to late spring to promote growth and bloom, focusing on dead or crowded stems. Clean tools to avoid disease, as regular pruning enhances large clammyweed's health and aesthetic appeal.

Propagation: Large clammyweed propagates well from seeds sown in well-draining soil, lightly covered for light exposure. Keep the soil consistently moist, avoiding waterlogging. Place seeds in warmth with ample sunlight for growth. Handle seedlings gently during transplanting to protect roots and ensure successful relocation.

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