A genuinely hardy Pelargonium, at least if given a sunny, free drained spot. This one has been in the same south facing site in sandy soil for the last six years. Last winter was the first time it lost its leaves, but it came back as strongly as ever to flower late summer and autumn. The flowers are quite strongly honey scented and may be produced in mild weather until Christmas.
There seems to be an imposter of this species in cultivation in the UK with flowers of a deep wine maroon – probably a hybrid with P.reniformis. Sidoides is completely stemless with black flowers on very long pedicels. The leaves are mostly about 3ins across. In contrast, the hybrid has short but distinct stems, the dark wine-red flowers are on short pedicels and the leaves are generally only about an inch across (like reniformis). I’ve found it distinctly less hardy.