Overview
Pelargonium ovale subsp. hyalinum is a plant with a bushy, trailing, or upright habit in the genus Pelargonium, part of the Geraniaceae family, with green, aromatic foliage. Pelargonium ovale subsp. hyalinum grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H1C. Suggested uses include bedding, containers and hanging baskets.
About
Pelargonium ovale subsp. hyalinum is a Pelargonium in the Geraniaceae, notable for aromatic green foliage and a variable habit that may be well-branched, trailing or upright. It flowers from June to October and prefers a sheltered, south-facing position in full sun. Plant into a neutral loam that drains freely and avoid waterlogged sites. Classified H1C in the UK, it is tender and will need winter protection from frost when grown outdoors.
About the genus
Pelargonium is a genus of flowering plants commonly called geraniums, pelargoniums, or storksbills. It includes about 280 species of perennials, succulents, and shrubs. Taxonomist Carl Linnaeus originally included all the species of Pelargonium and Geranium under the latter name.
Wikipedia contributors, "Pelargonium", CC BY-SA 4.0 — Pelargonium
In the garden
Pelargonium ovale subsp. hyalinum sits in the geranium family Geraniaceae and presents aromatic green leaves on stems that can be well-branched, trailing or upright. Flowering runs from June to October, making it a good choice where a steady display across summer and into autumn is desired. Give it a sunny, south-facing spot with some shelter from cold winds and persistent damp. It does best in a neutral loam that is well-drained; avoid heavy, moisture-retentive soils. In containers choose a loam-based compost and ensure free drainage through the pot — the plant’s H1C rating translates to 'tender' in UK terms, so expect to protect it from frost or bring pots under cover over winter. Use it for bedding, in containers or in hanging baskets where the aromatic foliage can be appreciated at close quarters. Positioning it by seating or doorways makes the scent of crushed leaves noticeable. The combination of a compact-to-trailing habit and long flowering period suits sheltered terraces and south-facing beds where winter temperatures remain moderate.
Growing conditions
Best soil and position for Pelargonium
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H1C
Plant details
Pelargonium ovale subsp. hyalinum size, habit and characteristics
- Habit
- Bushy, trailing, or upright
- Foliage
- Green, aromatic
- Suggested uses
- Bedding, containers, hanging baskets
Care notes
Pruning and caring for Pelargonium ovale subsp. hyalinum
- Propagation
- Softwood cuttings
- Pest resistance
- Susceptible to vine weevil, caterpillars, thrips
- Disease resistance
- May be susceptible to grey moulds when grown under glass
Frequently asked questions
Where is the best place to plant Pelargonium ovale subsp. hyalinum?
Pelargonium ovale subsp. hyalinum prefers full sun. It suits sheltered positions.
What soil does Pelargonium ovale subsp. hyalinum need?
Pelargonium ovale subsp. hyalinum grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Pelargonium ovale subsp. hyalinum hardy in the UK?
Pelargonium ovale subsp. hyalinum 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 Pelargonium ovale subsp. hyalinum?
Softwood cuttings.
More in the Pelargonium genus
- Pelargonium 'Barbe Bleu' (I/d)

- Pelargonium 'Diana Louise' (Z/d)

- Pelargonium 'Elizabeth Taylor' (Z)

- Pelargonium 'Hazel Gypsy' (R)

- Pelargonium 'Brookside Spitfire' (Dw/d)
- Pelargonium 'Deacon Jubilant' (Z/d)
- Pelargonium 'Don's Richard A. Costain' (Z/C/v/d)
- Pelargonium 'Friesdorf' (Fr/Dw)geranium 'Friesdorf'