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Pelargonium CarnosumPelargonium carnosum

Also known as Fleshy-Stalk Pelargonium · Meaty Storksbill

  • Category: Flowering, Ornamental
  • Type: Succulent
  • Sunlight: Full sun to partial shade.
  • Water: Allow soil to dry out between waterings. Reduce in winter.
  • Temperature: Prefers warm temperatures during the growing season.
  • Habitat: Outdoor, Indoor, Greenhouse

Pelargonium carnosum is a succulent perennial native to South Africa, known for its thick, fleshy leaves and clusters of white to pale pink flowers.

Pelargonium carnosum is a distinctive succulent species within the Geraniaceae family, notable for its unique adaptations to arid environments. This plant is primarily recognized for its fleshy, water-storing stems and leaves, a characteristic that allows it to thrive in regions with limited rainfall. Its scientific name, Pelargonium carnosum, precisely identifies this particular taxon, distinguishing it from other members of the extensive Pelargonium genus. Physically, Pelargonium carnosum presents as a shrubby perennial that typically grows to a modest size, often reaching heights of around 30 to 60 centimeters. Its most striking feature is its succulent nature. The stems are thick and fleshy, often appearing somewhat woody at the base as the plant matures, and are typically a pale green or grayish-green color. The leaves are also succulent, usually ovate to broadly ovate in shape, and can be either smooth or slightly hairy. They are arranged alternately along the stems and are often deciduous, meaning they may drop during prolonged dry periods to conserve moisture. The plant produces inflorescences bearing flowers that are generally small and inconspicuous, often white or pale pink, with the characteristic five petals typical of Pelargonium species. The fruit is a schizocarp, which splits into several segments when mature, each containing a single seed. The native distribution of Pelargonium carnosum is confined to specific regions of southern Africa, particularly within the Nama Karoo and Succulent Karoo biomes of South Africa and Namibia. These areas are characterized by arid to semi-arid conditions, with low and erratic rainfall. Consequently, Pelargonium carnosum naturally occurs in habitats such as rocky slopes, gravelly plains, and open, well-drained areas where it can receive ample sunlight. For successful cultivation outside its native range, it requires well-draining soil, such as a cactus or succulent mix, and protection from frost. It thrives in full sun to partial shade and should be watered sparingly, allowing the soil to dry out completely between waterings, especially during its dormant periods. While not widely cultivated for ornamental purposes compared to some other Pelargonium species, Pelargonium carnosum holds ecological significance as a component of its native succulent flora. Its succulent morphology is a key adaptation for survival in its harsh environment, enabling it to store water in its tissues to endure extended droughts. This water storage capacity is a testament to the plant's evolutionary success in arid landscapes. Its contribution to the biodiversity of these unique ecosystems is also noteworthy. There are no widely documented or scientifically established uses for Pelargonium carnosum in medicinal, culinary, or economic contexts. Its primary importance lies in its botanical interest and its role within its natural habitat.

Photograph © Oswald Kurten · CC-BY-NC

Pelargonium Carnosum Care Summary

At-a-glance light, water, soil, and growing conditions from plant data

Light

Full sun to partial shade.

80% intensity

Protect from intense afternoon sun in hot climates.

Water

Allow soil to dry out between waterings. Reduce in winter.

40% intensity

Soil

Well-draining soil mix, such as a cactus or succulent mix, is essential to prevent root rot.

50% intensity

Temperature

Prefers warm temperatures during the growing season.

70% intensity

Can tolerate cooler temperatures but protect from frost.

Habitat

Outdoor, Indoor, Greenhouse

50% intensity

Fertilizer

Feed sparingly during the growing season.

30% intensity

Use a balanced, diluted fertilizer.

Pelargonium Carnosum Toxicity

Safety information from plant toxicity data

Toxicity details for Pelargonium Carnosum
AttributeValue
Toxic for humansNo

0/5 intensity

Toxic for petsNo

0/5 intensity

EdibleNo

Pelargonium Carnosum Quick Facts

Key traits and growing stats from plant data

Plant Type
Succulent
Plant Category
Flowering, Ornamental
Plant Place Type
Pot, Ground
Plant Environment
Outdoor, Indoor, Greenhouse
Lifespan
Perennials
Plant Height
0.3-0.6 m
Spread
0.5-1 m
Growth Rate
Moderate
Dormancy
None
Leaf Color
Green, Grey-green
Leaf Type
Succulent, lobed
Flower Size
1-2 cm

Care guide for Pelargonium Carnosum

Watering, pruning, propagation, and repotting details from plant data

Water

Allow the soil to dry out completely between waterings. Overwatering is the most common cause of failure. Reduce watering significantly during the cooler, dormant months.

Pruning

Prune to maintain shape and encourage bushier growth. Remove any dead or damaged stems and leaves. Pruning can be done after flowering to encourage more blooms.

Propagation

Easily propagated from stem cuttings or seeds. Cuttings should be allowed to dry for a few days before planting in well-draining soil. Seeds can be sown in spring.

Repotting

Repot every 2-3 years or when the plant becomes root-bound. Use a pot with drainage holes and fresh, well-draining soil. Repot in spring before the active growing season begins.

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Flowering & Fruiting Cycles

Monthly activity intensity for bloom and fruit across both hemispheres.

Northern hemisphere

Flowering & fruiting calendar

Peak bloom · MayPeak fruit · Jun
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths53
Southern hemisphere

Flowering & fruiting calendar

Peak bloom · AugPeak fruit · Jul
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths53

Pelargonium Carnosum Names & Synonyms

Common names and botanical synonyms

Common Names

  • Fleshy-Stalk Pelargonium
  • Meaty Storksbill

Synonyms

  • Geraniospermum carnosum (L.) Kuntze
  • Geraniospermum ferulaceum (Burm.f.) Kuntze
  • Geranium carnosum L.
  • Geranium ferulaceum Burm.f.
  • Otidia burmanniana Eckl. & Zeyh.
  • Otidia carnosa Lindl. ex Sweet
  • Otidia ferulacea Eckl. & Zeyh.
  • Pelargonium burmannianum Steud.
  • Pelargonium eberlanzii R.Knuth
  • Pelargonium ferulaceum (Burm.f.) Willd.
  • Pelargonium parviflorum J.C.Wendl.
  • Pelargonium sisonifolium Baker

Pelargonium Carnosum Taxonomy

Botanical classification

Taxonomic classification of Pelargonium Carnosum
RankName
kingdomPlantae
divisionTracheophyta
classMagnoliopsida
orderGeraniales
familyGeraniaceae
genusPelargonium
speciesPelargonium carnosum

Pelargonium Carnosum FAQs

Answers based on plant encyclopedia data

How often should I water Pelargonium carnosum?

Water thoroughly only when the soil has completely dried out. Reduce watering significantly in winter to prevent root rot.

What kind of soil does Pelargonium carnosum need?

It requires a very well-draining soil mix, such as a cactus or succulent blend, to prevent waterlogging and root diseases.

Can Pelargonium carnosum be grown indoors?

Yes, it can be grown indoors as a houseplant, provided it receives adequate light and is planted in well-draining soil.

Why are the leaves of my Pelargonium carnosum wrinkling?

Wrinkling leaves usually indicate underwatering. Ensure the plant is getting enough water, but check that the soil is drying out between waterings.

Does Pelargonium carnosum need pruning?

Pruning is beneficial to maintain its shape, encourage a bushier habit, and remove any dead or leggy stems. It can be done after flowering.