cactus geranium
Also known as: sweetheart geranium
A tender sub-shrub, with semi-succulent, spiny stems, and lobed mid-green leaves with hairy undersides. Plants are often summer dormant, producing clusters of small white, pink or purple flowers, usually marked with dark red blotches on the petals, in autumn and sometimes again in spring

Scientific classification
- Species
- cactus geranium (Pelargonium echinatum)
- Genus
- Pelargonium
- Family
- Geraniaceae
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- Toxicity
- Shrubs · Herbaceous Perennial
- Plant type
- 0.5-1 metres
- Height
- 0.5-1 metres
- Spread
- Deciduous
- Foliage
- Bushy
- Habit
- Spring · Autumn · Winter
- Season of interest
- Full sun
- Sunlight
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- Ideal temperature
cactus geranium pictures
Distribution of cactus geranium
Distribution map
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Culture
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Toxicity
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Quick identification of cactus geranium
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cactus geranium care guide
- Allow partial soil drying before watering, avoid cold wet compost around roots
- Watering
- Full sun
- Sunlight
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- Ideal temperature
Watering
Allow partial soil drying before watering, avoid cold wet compost around roots
Fertilizing
High-potash pelargonium feed every two weeks through blooming warm season
Pruning
No pruning required
Propagation
Propagate by seed sown in spring, or by softwood cuttings in early autumn. Allow cuttings to dry for 2-3 days before inserting into medium
Growing
Grow in well-drained, sandy loam in a sunny spot. Plants are drought tolerant once established, keep almost dry during the dormant period. May tolerate temperatures down to -3°C for short periods, but will need protection from heavy frosts
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Common pests and diseases
Diseases
May be susceptible to grey moulds, black leg, pelargonium rust and pelargonium viruses
Pests
May be susceptible to vine weevil, glasshouse leafhopper, root mealybugs, aphids, caterpillars, thrips, fungus gnats and glasshouse whitefly
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