Gasteria glomerata
| Light | Bright, indirect light; protect from direct midday sun |
|---|---|
| Water | Moderately in growth; let the mix dry between waterings, drier in winter |
| Soil | Gritty, free-draining mix (see Soil and potting mix) |
| Temperature | Keep above freezing; USDA zones 9b–11 |
| Propagation | Leaf cuttings, offsets, or seed |
| Toxicity | Non-toxic to cats and dogs |
Gasteria glomerata is a small, slowly clustering succulent from the lower Kouga River in the Eastern Cape of South Africa. It forms tight clumps of thick, blunt, two-ranked (distichous) leaves in a soft grey-green, and its compact size and forgiving nature have made it one of the easiest and most rewarding miniatures in the genus Gasteria.
Description
Gasteria glomerata is a dwarf, mat-forming species that offsets freely to build dense little clumps rather than tall stems. The leaves are arranged in two opposite ranks (distichous), a fan-like habit the plant keeps as it matures rather than developing the spiralled rosette seen in some other gasterias. Individual leaves are short, plump and rounded at the tip, with a finely roughened, almost pebbled (tuberculate) surface and a chalky, glaucous grey-green colour that gives the plant a soft, matte appearance.
In its natural setting the leaves stay stubby and tightly packed. Like other Gasteria, it produces arching sprays of small, curved, stomach-shaped flowers — the swollen-based "gasteriform" bloom that gives the genus its name — typically reddish-pink with pale, green-striped tips, carried on a slender raceme in spring.
Distribution and habitat
The species is a narrow endemic of the lower Kouga River in the Eastern Cape of South Africa. It grows in a shaded, rocky habitat, rooting into cracks and ledges on steep, south-facing cliffs and boulders where its grey colouring blends against the stone. There it enjoys sharp drainage and shelter from the harshest sun, taking what moisture it can from rain that runs quickly off the rock face.
Because it clings to shaded cliffs and rocky crevices, plants naturally receive excellent drainage and protection from the fiercest sun — conditions well worth keeping in mind in cultivation.
Cultivation
Gasteria glomerata is one of the more beginner-friendly succulents and adapts well to life as a windowsill or shelf plant. Grow it in a gritty, very free-draining mix in a snug pot, and give it bright but gently filtered light — strong direct midday sun can scorch or bleach the soft leaves, while too little light makes the clump loose and pale. A little sun stress can bring out attractive reddish or bronzed tones without harm.
Water moderately while the plant is in active growth, always letting the mix dry out before watering again, and keep it much drier through the cool months to prevent rot. As a naturally small, slow, clumping species it is happy staying pot-bound for a long time; see Watering and Repotting for general technique. It tolerates average indoor warmth but should be kept above freezing.
Propagation
This is an easy species to increase. It offsets readily, and clumps can simply be divided at repotting time (see Propagation — offsets). It also propagates very reliably from leaf cuttings: a whole leaf removed cleanly, allowed to callus, and set on a gritty mix will usually root and pup at the base (see Propagation — cuttings). Seed is possible too but slower, and is mainly of interest for producing quantities or hybrids (see Propagation — seed).
Common problems
- Rot — the main risk, almost always from overwatering or a mix that holds too much moisture; the base and leaves go soft and translucent.
- Scorch — harsh direct sun can bleach or mark the soft grey leaves; introduce brighter light gradually.
- Etiolation — too little light loosens the tight rosette and dulls the colour.
- Pests — mealybugs (white fluff between the leaves and at the roots) are the most common; watch also for scale. See Pests and diseases.
See also
- Gasteria — the genus overview
- Soil and potting mix · Watering · Repotting · Propagation — cuttings · Propagation — offsets