Caucasian Draba (Mossy Draba) care

Light

Caucasian Draba needs sun on the leaves, not just bright ambient room light. Full sun is strongly preferred; a minimum of five to six hours of direct sunlight daily keeps cushions tight and encourages generous flowering. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water caucasian draba low — water only when soil is dry. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Highly drought-tolerant; water moderately during the growing season and reduce sharply in winter — wet crowns in cold weather are the principal cause of plant loss.

Soil and pot

Caucasian Draba grows best in sandy, sharply drained gritty soil. Thrives in lean, sandy or gravelly soil with neutral to slightly alkaline pH; rich soils produce over-lush, disease-prone growth and obscure the natural compact form. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Caucasian Draba sits happiest at around Low (30–50% RH) humidity and -25 to 20°C (-13 to 68°F). Native to continental mountain climates with low winter humidity; high atmospheric humidity in warm conditions encourages fungal crown rot — good air circulation is important. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed caucasian draba sparingly. A single spring feed with a dilute balanced fertiliser is sufficient; this slow-growing cushion plant does not need or benefit from regular feeding. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on caucasian draba in the Growli community. Each is annotated with the most common cause so you know where to start.

• Crown and root rot — Wet, poorly drained soil — especially over winter — rapidly kills the central rosette; plant in a raised scree bed or vertical rock crevice and mulch the crown with fine grit.
• Smothering by vigorous neighbours — As a slow-growing miniature it is easily overrun by faster-spreading plants; site it away from spreading thymes, sedums, or other mat-formers and check annually.

Propagation

Sow seed in autumn in a cold frame; divide carefully in early spring or take rosette cuttings in early summer, inserting them into a gritty, free-draining medium. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Caucasian Draba is mildly toxic to pets. The genus Draba is not listed on the ASPCA Toxic or Non-Toxic Plant database. As a Brassicaceae member it contains glucosinolates which may cause mild gastrointestinal irritation if ingested; classified mildly-toxic as a precaution pending authoritative listing. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Caucasian Draba deep-dive guides

Every aspect of caucasian draba care, each with its own calibrated guide:

• Common caucasian draba problems & fixes
• Caucasian Draba watering schedule
• Caucasian Draba light requirements
• Best soil mix for caucasian draba
• Caucasian Draba fertilizing guide
• When to repot caucasian draba
• How to propagate caucasian draba
• How to prune caucasian draba
• What's eating my caucasian draba?
• Caucasian Draba growth rate & size
• Caucasian Draba cold hardiness
• Caucasian Draba temperature & humidity
• Is caucasian draba toxic to cats & dogs?
• Is caucasian draba toxic to cats?
• Is caucasian draba toxic to dogs?
• All 10 Draba varieties
• Getting caucasian draba to bloom

Featured in these plant shortlists

Caucasian Draba qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Caucasian Draba is also known as Caucasian Draba, Mossy Draba, and Brunnifolia Whitlow Grass.

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• All 10153 plant care guides in the Growli library