Overview
Crithmum maritimum is a bushy herbaceous perennial in the genus Crithmum, part of the Apiaceae family, with evergreen foliage. It typically grows around 0.1-0.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 5-10 years. Crithmum maritimum grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include coastal, cottage and informal garden, gravel garden and wildlife gardens. It is native to Belgium, Flemish Region, Flanders, Desertas, Madeira Island, Porto Santo island, Corvo Island and Faial Island.
About
Crithmum is a monospecific genus of flowering plant in the carrot family, Apiaceae. The sole species, Crithmum maritimum, is commonly known as rock samphire, sea fennel or samphire.
Wikipedia contributors, CC BY-SA 4.0 — Crithmum
About the genus
Crithmum is a monospecific genus of flowering plant in the carrot family, Apiaceae. The sole species, Crithmum maritimum, is commonly known as rock samphire, sea fennel or samphire. It is found in parts of the Old World and is edible.
Wikipedia contributors, "Crithmum", CC BY-SA 4.0 — Crithmum
Growing conditions
Best soil and position for Crithmum
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- East-facing, North-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Crithmum maritimum size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Bushy
- Foliage
- Evergreen
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 5-10 years
- Suggested uses
- Coastal, Cottage and informal garden, Gravel garden, Wildlife gardens
- Native to
- Belgium, Flemish Region, Flanders, Desertas, Madeira Island, Porto Santo island, Corvo Island, Faial Island
Care notes
Pruning and caring for Crithmum maritimum
- Propagation
- Seed sown in autumn
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Crithmum maritimum?
Crithmum maritimum prefers full sun. It suits exposed and sheltered positions.
What soil does Crithmum maritimum need?
Crithmum maritimum is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays well-drained.
How big does Crithmum maritimum grow?
Crithmum maritimum reaches a height of 0.1-0.5 metres and a spread of 0.1-0.5 metres. It takes around 5-10 years to reach full size.
Is Crithmum maritimum hardy in the UK?
Crithmum maritimum has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Crithmum maritimum?
Seed sown in autumn.
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