Greater Broomrape (Orobanche rapum-genistae)

Greater Broomrape

Orobanche rapum-genistae

A parasitic beauty that steals sustenance from broom shrubs, no chlorophyll to glow. Holoparasitic flowering herb; common name: Greater Broomrape.

Low light
0/week
Moderate
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Plant Needs

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Sunlight Requires no direct sunlight as it lacks chlorophyll; grows attached to host plant roots
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Watering Obtains all moisture from host plant roots; no supplemental watering is needed
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Temperature Thrives in cool temperate conditions; tolerates mild frost down to 5°C
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Characteristics

  • Leaf: Reduced to scale-like, non-photosynthetic structures along stems
  • Flower: Dense terminal spikes of purple, pink, or white tubular flowers
  • Stem: Thick, fleshy, pale brown to purple upright stems with no true foliage
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Care Guide

Watering

No supplemental watering; moisture is sourced exclusively from the host plant

Fertilization

No fertilization required; all nutrients are obtained from the host plant. Fertilizers will not benefit this holoparasitic plant

N/A:DIY fertilizers are not applicable as the plant relies on host nutrients
Pruning
  • Remove spent flower spikes after blooming to prevent unwanted self-seeding
  • Avoid disturbing the roots of the host broom shrub when managing broomrape
  • Thin dense clusters to reduce over-parasitization and protect host plant health
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: N/A