Knapweed broomrape (Orobanche elatior)

Knapweed broomrape

The Great Sommerwurz is a 20 to 60 cm tall, parasitic plant that parasitizes on species of bluebells (Centaurea). The densely packed scales on the stem are usually longer than the internodes.

Scientific classification

Species

Knapweed broomrape (Orobanche elatior)

Mints plantains olives and allies

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Perennial

Lifespan

2.5 cm to 3.5 cm

Flower Size

Yellow, Purple, Orange, Pink, Brown

Flower Color

Deciduous

Leaf type

Care Guide for Knapweed broomrape

Every week

Water

Full sun

Sunlight

Water: Knapweed broomrape thrives in moderate moisture, preferring consistently moist soil without waterlogging. Weekly watering fosters this balance. Typically grown outdoors, knapweed broomrape is affected by rainfall, influencing its growth cycles and flowering periods.

Fertilize: For knapweed broomrape, use a balanced fertilizer to enhance growth, particularly during early and mid-season for the host plant. Monthly feeding is suggested in the vegetative phase, adjusting as knapweed broomrape matures. Monitor host health to avoid over-fertilization, which can harm knapweed broomrape through excessive dependency.

Pruning: This parasitic plant, knapweed broomrape, has tubular flowers and lacks chlorophyll. Pruning should occur from early to late spring to remove flower stems and faded inflorescences, promoting air circulation and host plant health. Clean tools are essential to prevent disease spread and control over-infestation.

Propagation: Knapweed broomrape is a chlorophyll-lacking parasitic plant that relies on a host for nourishment. Its propagation requires sowing seeds on the host plant's roots, as they need specific chemical signals to germinate. Successful growth depends on careful management of the host-parasite relationship.

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Learn More About Knapweed broomrape

How to Transplant

How to Prune

How to Grow and Care

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