How to Grow Buttercup 'Citrinus'

Wikimedia Commons

Buttercup 'Citrinus'

Ranunculus acris 'Citrinus'

flower

Citrinus is a cultivar of meadow buttercup featuring cheerful lemon-yellow flowers that bloom profusely in late spring through early summer. This herbaceous perennial reaches 24-36 inches tall and is valued for its bright color and long vase life, making it excellent for cut flowers and garden displays.

When should you plant Buttercup 'Citrinus' in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Buttercup 'Citrinus' timeline →

Example Buttercup 'Citrinus' timeline · Pittsburgh, PA (Zone 6b)

Plant Buttercup 'Citrinus'
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
First Buttercup 'Citrinus' blooms
Around Jun 16

≈ 60 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Buttercup 'Citrinus' dates for your own zip code.

Growing Conditions

☀️

Sun: Full sun to partial shade; 6+ hours of direct sunlight daily

💧

Water: Moderate water needs; keep soil consistently moist but not waterlogged. Water regularly during growing season; reduce in winter dormancy.

📏

Spacing: 12 inches

📅

Days to maturity: 60-90 days from planting to first flowering

🌱

Planting depth: Seeds: 1/8 inch (surface sow); transplants: at soil level

Soil

Type: Well-draining loamy soil with consistent moisture

pH: 6.0-7.0

Amendments:

Compost peat moss aged manure

Growing Zones

Find your zone →

Thrives in zones 3-8; prefers cooler climates

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

Get my Buttercup 'Citrinus' timeline →

Growth Stages

Germination & Seedling

2-3 weeks

Tiny seedlings emerge with cotyledons and develop first true leaves

Keep soil moist but not soggy; provide bright indirect light; thin seedlings to prevent crowding

Vegetative Growth

6-8 weeks

Plant develops leafy rosette with finely divided, fern-like foliage; stems elongate

Maintain consistent moisture; ensure adequate sunlight; stake if needed in windy locations

Bud Formation & Flowering

4-6 weeks

Flower buds form at stem tips; glossy lemon-yellow cup-shaped flowers open sequentially

Continue regular watering; deadhead spent flowers to encourage continued blooming; apply balanced fertilizer every 2 weeks

Peak Bloom & Seed Setting

3-4 weeks

Maximum flower production; if flowers are not deadheaded, seed heads begin to form

Deadhead to prolong bloom or allow some flowers to mature for seeds; reduce nitrogen fertilizer if overgrown

Dormancy Preparation

4-8 weeks

Flowering diminishes; foliage begins to yellow and die back as plant enters dormancy

Reduce watering gradually; allow foliage to die back naturally; cut back stems in late fall; mulch for winter protection in cold zones

Companion Planting

Plan your garden →

Plant with:

Aquilegia Campanula Delphinium Salvia Catmint Geranium Iris Peonies

Avoid planting near:

Allelopathic plants that may inhibit growth

Common Pests

Spray with water stream; use insecticidal soap or neem oil for heavy infestations
Improve air circulation; avoid wetting foliage; apply sulfur dust or fungicide if needed
Increase humidity; spray with water; use miticide in severe cases
and
Remove by hand; use slug baits or barriers; encourage beneficial predators

Uses

🍳

Edible Flower Garnish

Culinary

The bright petals are edible and add cheerful color to salads, desserts, and special occasion dishes. Used primarily for decoration and mild flavor impact. [source]

🏠

Cut Flower Arrangements

Household

Excellent cut flower with exceptional vase life (7-10 days). The tall stems and abundant blooms make it ideal for bouquets, arrangements, and floristry. [source]

💊

Traditional Herbal Use

Medicinal

Ranunculus species have been used in traditional herbalism, though modern use is limited. Historically used in folk remedies, though toxicity precautions apply. [source]

🦋

Pollinator Support

Wildlife

Bright yellow flowers attract bees, butterflies, and other pollinators during late spring and summer. Provides important nectar source for beneficial insects. [source]

🎨

Dried Flower Arrangements

Craft

Flowers dry well, maintaining bright color when hung upside down in a dry location. Used in pressed flower crafts and dried arrangements. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Cut stems for bouquets in early morning when flowers are fully open but still fresh. Use sharp floral scissors and cut stems at a 45-degree angle. Place immediately in water. For seed collection, allow flowers to fade and seed heads to dry on plant; collect when brown and papery, then dry further indoors.

Fun Facts

🌱 The glossy petals of buttercups reflect light due to a special layer of cells beneath the petal surface, creating their characteristic bright appearance and the traditional test of holding one under the chin to see if it 'glows'.
🌱 'Citrinus' refers to the lemon-yellow color (from the Latin 'citrinus'), distinguishing it from other Ranunculus acris cultivars which may be white or pink.
🌱 Ranunculus acris (meadow buttercup) is native to European grasslands and meadows and has naturalized in many temperate regions, making 'Citrinus' a perennial choice unlike annual varieties.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Cultivar Deadhead Full Sun Mulch Partial Shade Perennial True Leaves

Shop Buttercup 'Citrinus' plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Buttercup 'Citrinus' planting timeline

Tell us your zip code and we'll calculate exactly when to start Buttercup 'Citrinus' seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Buttercup 'Citrinus' timeline →