General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Biennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9a
Plant Height: 4 to 5 feet
Plant Spread: 1 to 2 feet
Fruit: Showy
Flowers: Showy
Flower Color: Yellow
Flower Time: Late spring or early summer
Summer
Uses: Culinary Herb
Cut Flower
Edible Parts: Stem
Leaves
Flowers
Eating Methods: Raw
Cooked
Wildlife Attractant: Butterflies
Propagation: Seeds: Sow in situ
Pollinators: Self
Various insects
Containers: Needs excellent drainage in pots

Image

Photo Gallery
Location: Howick Hall garden, Northumberland, UK
Date: 2015-05-15
Location: Howick Hall garden, Northumberland, UK
Date: 2010-05-10
Location: De Hessenhof (nursery)
Location: Botanischer Garten Berlin
Date: 2023-05-11
Location: De Hessenhof (nursery)
Date: 2023-05-20
Uploaded by kniphofia
Location: De Hessenhof (nursery)
Location: De Hessenhof (nursery)
Location: Howick Hall gardens, Northumberland, England UK 
Date: 2020-08-07
Smyrnium perfoliatum
Location: De Hessenhof (nursery)
Location: Howick Hall, Northumberland, UK
Date: 2015-05-15

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