Climbing Hempweed (Mikania ternata)

Climbing Hempweed

Mikania ternata

Fast-growing twining vine valued for its light floral scent and nectar-rich heads. Native climber in the sunflower family; other names: white mikania.

Full sun
2/week
Beginner
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Plant Needs

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Sunlight Prefers full sun exposure but can tolerate partial shade
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Watering Moderate watering; allow topsoil to dry between waterings
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Temperature Thrives in warm temperatures; not frost-tolerant
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Characteristics

  • Leaves: Opposite, triangular to ovate, 3–7 cm long, base cordate or rounded, margins entire to slightly toothed, thin texture.
  • Flowers: Small white composite heads (3–5 mm), arranged in corymbose clusters, disk florets only, involucre of narrow bracts.
  • Stem: Slender, twining, green to reddish, glabrous or sparsely hairy.
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Care Guide

Watering

Water regularly to keep soil evenly moist

Fertilization

Apply balanced organic fertilizer monthly. Feed regularly during active growth to encourage blooms

Banana peel compost:Dry and grind banana peels, mix into soil to support flowering; avoid excess to prevent pests
Pruning
  • Remove dead or tangled stems to promote airflow;
  • Pinch growing tips to control length;
  • Cut back after flowering to encourage new growth;
  • Remove invasive runners regularly;
  • Train stems along supports for desired shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: May cause mild gastrointestinal upset if large amounts ingested (per ASPCA analog for genus)

Humans: No known toxicity to humans under normal contact or ingestion

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Garden Uses & Culture

Culture: In parts of South America it symbolizes resilience due to its vigorous climbing habit and ability to thrive in diverse conditions.

Usage: - Ornamental climber for fences and trellises - Pollinator attractor due to nectar-rich flowers - Erosion control on slopes