Overview
Dorema ammoniacum is a plant with a tall herbaceous perennial habit in the genus Dorema, part of the Apiaceae family, with pinnate foliage. Dorema ammoniacum grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include specimen plant and border accent.
About
Ferula ammoniacum, also known as oshac or ussaq, is a species of flowering plant in the family Apiaceae, native to Iran, Turkmenistan, Afghanistan, and Pakistan. It is the source of Persian gum ammoniac.
Growing conditions
Best soil and position for Dorema
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Dorema ammoniacum size, habit and characteristics
- Habit
- Tall herbaceous perennial
- Foliage
- Pinnate
- Suggested uses
- Specimen plant, border accent
Care notes
Pruning and caring for Dorema ammoniacum
- Propagation
- Seed, division
- Pest resistance
- Susceptible to aphids, mealybugs
- Disease resistance
- Susceptible to powdery mildew
Frequently asked questions
Where is the best place to plant Dorema ammoniacum?
Dorema ammoniacum prefers full sun. It suits sheltered positions.
What soil does Dorema ammoniacum need?
Dorema ammoniacum grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Dorema ammoniacum hardy in the UK?
Dorema ammoniacum has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Dorema ammoniacum?
Seed, division.
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