Overview
Arum idaeum is a clump forming herbaceous perennial in the genus Arum, part of the Araceae family, with deciduous foliage. Arum idaeum grows best in full sun, and tolerates loam soils and any pH. Its UK hardiness is rated H1c. Suggested uses include houseplants, patio and container plants, sub-tropical, bedding, conservatory and greenhouse and cut flowers.
About
Arum idaeum is a clump-forming perennial cultivar of the Arum genus, known for developing tubers and bearing simple, arrow-shaped leaves. This deciduous plant produces small flowers hidden at the base of a yellow or purple club-like spadix, surrounded by a prominent hood-like spathe, followed by red berries. It thrives in well-drained loam soil with moist conditions and prefers full sun exposure, ideally in a south- or west-facing, sheltered position. Suitable for use as a houseplant, patio or container plant, and in conservatories, it is hardy to H1c and is best propagated by division in spring.
Growing conditions
Best soil and position for Arum
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing or West-facing
- Exposure
- Sheltered
- UK hardiness
- H1c
Plant details
Arum idaeum size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- Houseplants, Patio and container plants, Sub-tropical, Bedding, Conservatory and greenhouse, Cut flowers
Care notes
Pruning and caring for Arum idaeum
- Propagation
- Division in spring
- Pest resistance
- May be susceptible to aphids or thrips; glasshouse red spider mite or glasshouse whitefly
- Disease resistance
- May be susceptible to bacterial or fungal rots or a virus
Frequently asked questions
Where is the best place to plant Arum idaeum?
Arum idaeum prefers full sun. It suits sheltered positions.
What soil does Arum idaeum need?
Arum idaeum grows best in loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Arum idaeum hardy in the UK?
Arum idaeum has an RHS hardiness rating of H1c, meaning it needs a warm, frost-free position of 5–10°C and is best grown under glass in the UK.
How do I propagate Arum idaeum?
Division in spring.
More in the Arum genus
- Arum dioscoridis
- Arum elongatum
- Arum italicum 'Caroline Hayes'
- Arum italicum 'Eco Ghost'
- Arum italicum 'Lady Aron'
- Arum italicum 'Pamela Harper'
- Arum italicum 'Taff's Giant'
- Arum maculatum 'Rusné'
