G. flavum is an erect, rosette-forming, hairy, short-lived perennial, often grown as a biennial, with pinnate, deeply-divided, rought, blue- to grey-green leaves and branched stems bearing golden yellow or orange flowers in summer.
Horned-poppy Care
Glaucium Flavum



What is the plant
It's considered invasive in Massachusetts.
How to Care for the Plant

Water

Water copiously just after planting.

Pruning

How to prune: Dead leaves and bloom stems

Sunlight

It cannot grow in the shade
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Soil

Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils.

Temperature

A very ornamental but short-lived perennial, it is hardy to about -10°c

Additional

Roots are toxic if ingested. Prolonged contact may cause skin irritation. If using as an external herbal application, use with caution and only on unbroken skin.
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Popularity

121 people already have this plant 21 people have added this plant to their wishlists
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