Great marsh thistle (Carduus personata)

Great marsh thistle

Great marsh thistle is a summer-blooming, thorny herbaceous perennial which is noted for its broad leaves and clustering flowers. Great marsh thistle is a self-supporting tall wildflower that naturally occurs in alpine areas along waterways.

Scientific classification

Species

Great marsh thistle (Carduus personata)

Asters bellflowers fanflowers and allies

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1.2 m to 2 m

Plant Height

2 cm to 2.5 cm

Flower Size

Red, Purple

Flower Color

Deciduous

Leaf type

10 - 35 ℃

Ideal Temperature

Care Guide for Great marsh thistle

Every week

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Water: Great marsh thistle prefers consistent moisture and regular hydration, ideally watered weekly without waterlogging. Thriving outdoors, it benefits from rainwater during its growing season, which supports its ecological role in moist environments.

Pruning: Great marsh thistle requires careful pruning from early to late spring to promote healthy growth. Remove dead stems and trim weak branches for better air circulation and sunlight exposure. Pruning enhances blooms and prevents invasiveness. Use sharp, clean tools to minimize disease risks.

Propagation: Great marsh thistle, a wetland native, propagates primarily through seed sowing. Use a well-draining substrate that retains moisture and provide adequate space for seedlings. Monitor for pests and diseases to promote healthy growth, ensuring great marsh thistle establishes successfully and contributes to future generations.

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