Pelargonium longifolium

Plate 1 figs. a–h · 8 separate observations

Pelargonium longifolium, photographed by Brian du Preez — fig. b Brian du Preez, CC BY-SA 4.0 / obs. 107240081

Pelargonium longifolium, photographed by Jacques van der Merwe — fig. d Jacques van der Merwe, CC BY-SA 4.0 / obs. 15127976

Pelargonium longifolium, photographed by Tony Rebelo — fig. e Tony Rebelo, CC BY-SA 4.0 / obs. 15203176

Pelargonium longifolium, photographed by Dave U — fig. g Dave U, CC BY-SA 4.0 / obs. 110767344

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 1 botanical country

Native distribution of Pelargonium longifolium, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.

Region	TDWG code	Continent
Cape Provinces	CPP	AFRICA

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 101 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	3.7 °C	6.2 °C	10.4 °C
Warmest month, mean daily high	20.8 °C	27.5 °C	30.6 °C
Annual rainfall	468 mm	1,045 mm	2,488 mm
Rainfall in the driest quarter	36 mm	91 mm	236 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 101 research-grade observations of Pelargonium longifolium that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 33 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

Campylia laciniata Sweet
Dimacria auriculata (Willd.) Sweet
Dimacria longiflora Sweet
Dimacria longifolia (Burm.f.) Sweet
Geraniospermum longifolium (Burm.f.) Kuntze
Geranium auriculatum (Willd.) Poir.
Geranium heterophyllum Andrews
Geranium longiflorum Poir.
Geranium longifolium Burm.f.
Hoarea auriculata (Willd.) Sweet
Hoarea barbata Eckl. & Zeyh.
Hoarea ciliata Sweet
Hoarea depressa Sweet
Hoarea laciniata Sweet
Hoarea lancifolia Eckl. & Zeyh.
Hoarea longiflora Sweet
Hoarea longifolia Sweet
Hoarea parnassioides Eckl. & Zeyh.
Hoarea prolifera Eckl. & Zeyh.
Hoarea purpurascens Sweet
Hoarea virginea Eckl. & Zeyh.
Pelargonium adulterinum Wendl. ex Hoffmanns.
Pelargonium auriculatum Willd.
Pelargonium bipinnatifidum Wender.

and 9 more.

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.