Streptocarpus modestus occurs in a very limited geographical range in a few gorges on the Pondoland coastal area of the Eastern Cape Province of South Africa. It is one of the six species of endemic Streptocarpus species in the area (Grieve et al. 2025) and occurs in the gorges of Magwa Falls, Fraser Falls, the Myokane gorge and the Msikaba gorge. Although it occurs in these deep gorges, it occupies drier microclimates, mostly growing on rocks and cliff faces in small pockets of mosses, lichens and leaf litter. The species therefore tolerates much lower levels of moisture, which is of importance when cultivating it.
It is a typical rosulate species with small leathery leaves which has a compact growth habit. Leaves grow to 200 x 45 mm. The species is quite floriferous with up to 12 flowers open at the same time. The flowers are funnel-shaped, but quite short (28-35 mm long), wider at the mouth (16-20 mm), with sub-orbicular lobes that are 9-10 x 14 mm. The medium violet flowers have seven fine deep violet lines on the floor of the corolla which extend into the three lower corolla lobes where the intensity varies. In the centre of the floor of the inner tube of the flowers there is sometimes a yellow stripe which can vary from extremely pale to wider and deeper yellow, widening at the mouth sometimes extending into the lower lip.
The compact habit of this plant and its attractive corolla colour and markings should make this plant of interest to horticulturists and hybridizers alike.
