Bunny Succulents (Monilaria Obconica)
Monilaria obconica, nicknamed the Bunny Succulent for its paired, ear-like leaves, is a small South African mesemb that behaves differently from most succulents on the windowsill: it grows through the cool months and shuts down completely in summer. Get that backwards and the plant looks dead when it's actually just resting. Here's how to keep one alive and looking its best.
What is Monilaria obconica?
Monilaria obconica comes from the winter-rainfall regions of the Northern Cape in South Africa, part of the Aizoaceae family alongside Lithops, Conophytum, and other "living stone" type mesembs. Each new growth cycle produces one pair of cylindrical, upright leaves fused at the base, giving the plant its bunny-ear look. In a happy plant, a fresh pair of leaves emerges each fall and slowly replaces the previous set.
It's a clumping plant: over a few years a single rosette will offset into a small cluster of "ears" packed together. Mature plants can send up thin flower stalks with small white to pale daisy-like flowers, usually in late winter or spring.
The Growing Cycle: Why This Plant Is Backwards From Most Succulents
Winter growth, summer dormancy
Monilaria is a winter grower. New leaves appear in fall as temperatures cool, growth continues through winter and into spring, and then in the heat of summer the plant pulls resources back into its base, the leaves shrivel and turn into a dry, papery, brown husk, and the plant appears to die. It hasn't. This is normal dormancy for mesembs from this part of South Africa, the same pattern seen in many Lithops.
Do not water a dormant, shriveled plant to "revive" it and do not throw it away. Leave it alone in a dry, bright spot until new growth resumes at the base in fall.
Lifespan
With correct seasonal watering, a Bunny Succulent can persist and offset into a multi-headed clump for several years. Most losses come from watering through summer dormancy or from waterlogged soil during the growing season, not from old age.
Care During the Active (Fall-to-Spring) Season
Light
Give it bright light, several hours of direct or near-direct sun in the cooler months, ideally an east or south-facing window indoors, or morning sun with afternoon shade outdoors. Too little light produces stretched, floppy leaves; scorched or bleached patches mean the sun hit too hard too fast, especially on a plant moved outdoors without acclimating it first.
Soil
Use a gritty, mineral-heavy mix, not standard potting soil. A cactus/succulent mix cut with extra pumice, perlite, or coarse sand so mineral material makes up roughly half the volume by volume drains fast enough to avoid rot. A container with a drainage hole is not optional for this plant.
Watering
Use a soak-and-dry approach during the active season: water thoroughly until it runs out the drainage hole, then let the pot go completely dry before watering again, rather than giving small sips on a fixed schedule. West Virginia University Extension's succulent guidance is explicit that shallow, frequent watering causes weak, distorted growth and that succulents should only be watered once the soil has dried out completely, and UC Marin Master Gardeners note that overwatering is the single most common way people kill succulents (WVU Extension, UC Marin Master Gardeners). In practice that's roughly every one to two weeks in active growth, adjusted for pot size, humidity, and how fast the mix actually dries.
Stop watering as dormancy starts
As the leaves begin to shrivel in spring heading into summer, taper off. Once the plant is fully dormant, withhold water almost entirely until new growth shows in fall. A light misting is sometimes used by growers to prevent the base from desiccating completely in very hot, dry conditions, but soaking a dormant plant is one of the fastest ways to rot it.
Temperature
It's happiest in the 60-80degF range during the growing season and tolerates brief dips into the 40s degF without damage; hard frost will kill it. During summer dormancy it can sit through much higher heat as long as it's kept dry.
Fertilizer
Feed sparingly, at most a diluted (half-strength) cactus fertilizer once or twice during active growth. Skip fertilizer entirely during dormancy.
Propagation
From seed
- Let spent flowers dry fully on the plant and collect the seed pods.
- Sow seed on the surface of a gritty, well-draining mix; mesemb seed generally needs light to germinate, so don't bury it.
- Keep the mix barely moist (not soggy) and in bright, indirect light until seedlings appear, then taper watering as they establish.
- Grow seedlings on the same winter-growing, summer-dormant cycle as adults once they're established.
From offsets
- Once a clump has produced separate, rooted heads, gently tease or cut an offset away from the parent with a clean blade.
- Let the cut surface callus (dry) for a day or two before planting, the same way you'd treat a cactus cutting, to reduce rot risk.
- Pot into fresh gritty mix and water sparingly until you see signs of new root growth.
Propagation only really succeeds if it's timed to the active season; cuttings and seed sown during summer dormancy tend to rot rather than root.
Pests and Rot
Mealybugs are the most common pest, showing up as small white cottony clusters tucked between the leaf pairs or at the base. Aphids and spider mites show up less often but can appear on stressed plants. For a light infestation, dab visible mealybugs with a cotton swab dipped in 70% isopropyl alcohol, then follow up with insecticidal soap; repeat every week or two since eggs hatch in waves and one treatment rarely finishes the job.
Root and stem rot from overwatering, especially during dormancy, is the more common killer than any insect. A dormant-looking plant that's mushy or dark at the base rather than dry and papery is rotting, not resting; there's usually no saving that section, but healthy offsets can sometimes be salvaged and repotted into dry, fresh mix.
A Note on Handling
Monilaria isn't reported as a notable pet or human toxicity risk the way Aloe or Euphorbia species are, but as with most unfamiliar houseplants, keep it away from pets and small children who might chew on it. Ingesting plant material that isn't part of a pet's normal diet can cause mild stomach upset even when a plant isn't specifically toxic, so treat "not known to be toxic" as different from "safe to eat" (ASPCA).
FAQ
Why does my Bunny Succulent look dead in summer?
It's almost certainly normal dormancy, not death. The leaves dry into a brown, papery husk while the plant rests through the heat; keep it dry and in bright light and new leaves should emerge at the base in fall.
How often should I water it?
During active fall-to-spring growth, soak the pot fully and then let it dry out completely before watering again, typically every one to two weeks depending on conditions. During summer dormancy, stop watering almost entirely.
Can I grow it outdoors?
Yes in mild, dry climates with well-draining soil and protection from hard frost and heavy summer rain; in humid or freezing climates it does better in a pot you can control.