Bulbous Buttercup (Bulbous Crowfoot) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Requires full sun; its natural habitat is open, closely grazed or thin grassland and it does not tolerate the shade that meadow buttercup can endure. If your only bright window faces south, that's perfect for bulbous buttercup — same window any aroid would fry on.

Watering

Watering bulbous buttercup: once weekly or less; drought-tolerant once established. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Unlike most Ranunculus, the bulbous buttercup is adapted to dry, free-draining soils and goes dormant in summer drought — avoid wet, heavy soils that cause the corm to rot.

Soil and pot

Bulbous Buttercup grows best in well-drained, low-fertility, alkaline to neutral loam, chalk, or sandy soil. Calcareous grassland is its preferred habitat; the corm rots in waterlogged or overly fertile soils, and the plant is outcompeted by rank growth on enriched ground. 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

Bulbous Buttercup sits happiest at around Low to moderate ambient outdoor humidity humidity and -25 °C to 25 °C (-13 °F to 77 °F). Good drainage is far more important than humidity management; the corm must experience a dry summer rest period to flower reliably the following spring. 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 bulbous buttercup sparingly. No feeding required or recommended; high fertility produces coarse, leafy growth that can suppress flowering and makes the plant uncharacteristically large. 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 bulbous buttercup in the Growli community. Each is annotated with the most common cause so you know where to start.

• Corm rot in wet soils — The swollen stem base is highly prone to rotting in waterlogged or heavy clay soils; always plant in sharply drained ground and raise beds on heavy soils using grit incorporation.
• Competition from vigorous grasses — In grassland settings the bulbous buttercup is easily suppressed by coarse, rank grass growth; manage surrounding sward height and avoid fertilising to keep the plant's low-fertility niche open.

Propagation

Divide clumps carefully in early autumn when the plant is dormant, ensuring each division retains a healthy corm; replant promptly at the same depth. Seed sown fresh in autumn germinates the following spring. 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

Bulbous Buttercup is toxic to pets. The ASPCA lists Buttercup (Ranunculus spp.) as toxic to cats, dogs, and horses. The toxic principle is protoanemonin (derived from ranunculin), released when the plant is damaged. Clinical signs include vomiting, diarrhea, hypersalivation, oral ulcers, depression, and wobbly gait. The fresh corm is particularly irritant; toxicity is reduced significantly on drying. 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.

Bulbous Buttercup deep-dive guides

Every aspect of bulbous buttercup care, each with its own calibrated guide:

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

Featured in these plant shortlists

Bulbous Buttercup 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.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• 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.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Bulbous Buttercup is also known as Bulbous Buttercup, Bulbous Crowfoot, and St Anthony's Turnip.

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