perennialN. America Native

California Buttercup

Ranunculus californicus

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

20 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

California

Toxicity

Toxic if ingested, sap can irritate skin

The Story

Plant Bio

Ranunculus californicus is a perennial wildflower native to California, known for its bright yellow flowers and attractive foliage. This species is particularly adapted to moist environments and is often found in meadows and along stream banks.

Uses & Benefits:

Adds vibrant, cheerful color to gardens and borders with its bright, multi-hued blooms.

Suitable for cut flower arrangements, lasting several days indoors.

Provides nectar for pollinators like bees and butterflies.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds into well-drained soil in early spring.
Mist cuttings regularly to maintain humidity and promote rooting.
Water consistently to keep soil moist but not waterlogged.
Fertilize monthly with a balanced, water-soluble fertilizer.
Remove spent flowers to encourage new blooms.
Divide clumps in early spring for propagation.

Pro Tip

Plant in a sheltered spot with partial shade for best blooms.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Mulch to retain soil moisture and suppress weeds
Deadhead spent flowers for prolonged blooming

Don't

Avoid overwatering to prevent root rot ❌
Don’t expose to harsh midday sun in hot climates
Refrain from neglecting pest checks

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful perennial borderDelicate flower bed accentWildflower meadow element

Companion Plants

California poppy Lupine Verbena Coreopsis Eschscholzia

Multiply

Propagation Methods

Good to Know

Common Questions

California Buttercup questions

What zones can California Buttercup grow in?

California Buttercup is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is California Buttercup deer resistant?

Not reliably. Deer may browse California Buttercup, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does California Buttercup bloom?

California Buttercup typically blooms in late winter to spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does California Buttercup need full sun?

California Buttercup does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is California Buttercup drought tolerant?

Yes — once established (usually after the first full season), California Buttercup handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.