How to Grow Cleome Señorita Rosalita

Cleome Señorita Rosalita

Cleome hassleriana 'Señorita Rosalita'

flower

Señorita Rosalita is a compact, bushy cultivar of spider flower featuring deep pink to rose-colored blooms with distinctive long, spidery stamens. This heat-loving annual grows 24-30 inches tall and produces prolific flower clusters from midsummer through fall frost. It's an excellent choice for borders, containers, and pollinator gardens.

Growing Conditions

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Sun: Full sun, 6-8 hours daily; tolerates light afternoon shade in hot climates

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Water: Moderate water needs; water regularly during establishment and dry spells. Once established, drought-tolerant. Reduce watering in cool weather. Avoid wetting foliage to prevent powdery mildew.

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Spacing: 18 inches

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Days to maturity: 60-80 days from seed to first flowers

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Planting depth: Surface sow or barely cover seeds; requires light to germinate

Soil

Type: Well-draining, fertile loamy soil; tolerates poor soil

pH: 6.0-7.5

Amendments:

Compost or aged manure for fertility Perlite or sand if soil tends to compact Minimal fertilization needed

Growing Zones

Find your zone →

Performs well in zones 2-11; thrives in warm climates but is grown as annual everywhere

2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

Growth Stages

Seed & Germination

10-14 days

Tiny seeds germinate in 10-14 days at 70-75°F. Seedlings are delicate with fine cotyledons.

Provide light for germination. Keep soil moist but not waterlogged. Use bottom heat if indoor sowing. Direct sow after last frost or start indoors 4-6 weeks prior.

Seedling & Early Growth

3-4 weeks

Seedlings develop true leaves and begin branching. Plants are still small and tender.

Thin seedlings to proper spacing. Harden off transplants gradually before moving outdoors. Keep soil consistently moist. Provide bright light if growing indoors.

Vegetative Growth

4-6 weeks

Plant develops bushy foliage with multiple branching stems. Leaves are palmate (hand-shaped) and feathery.

Water regularly and maintain consistent moisture during hot weather. Pinch back early growth if extra bushiness desired. Minimal fertilizer needed; too much promotes foliage over flowers.

Flowering & Blooming

8-12 weeks or until frost

Deep pink flower clusters (racemes) appear at branch tips. Distinctive long stamens create spider-like appearance. Flowers continuously until frost.

Deadhead spent flower clusters to encourage more blooms. Water during dry spells. Plants are self-seeding; allow some flowers to mature for next season's volunteers.

Seed Production & End of Season

Variable; until first hard frost

If not deadheaded, flowers produce long, narrow seed pods that mature and dry on the plant. Plant continues flowering until killed by frost.

Let flowers go to seed if you want self-sown plants next year. Collect seed pods when brown and dry. Allow plants to remain for wildlife and winter interest, or remove once frost-killed.

Companion Planting

Plan your garden →

Plant with:

Zinnias Cosmos Salvia Alyssum Verbena Lantana Coreopsis Black-eyed Susan Sunflowers

Avoid planting near:

Fennel (allelopathic; inhibits growth) Dill (may cross-pollinate if seed-saving desired)

Common Pests

Spray with insecticidal soap or neem oil; use yellow sticky traps. Hose off with water in early morning.
Increase humidity by misting foliage (early morning). Use neem oil or miticide if severe. Remove heavily infested leaves.
Spray with strong water stream or insecticidal soap. Encourage beneficial insects like ladybugs.
Improve air circulation and avoid wetting foliage. Apply sulfur dust or fungicide at first sign. Thin plant if overcrowded.

Uses

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Edible Flowers

Culinary

Spider flower petals are edible and make colorful, lightly peppery garnishes for salads and desserts. The flowers are sometimes used in specialty culinary applications for visual appeal. [source]

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Pollinator Magnet

Wildlife

Cleome is highly attractive to bees, butterflies, hummingbirds, and other pollinators. Señorita Rosalita's abundant flower production provides nectar and pollen throughout the growing season. [source]

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Cut Flowers & Arrangements

Household

The unique spider-like flower clusters with long stamens are striking in fresh arrangements and floral designs. They add height, texture, and unusual form to bouquets. [source]

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Traditional Herbal Use

Medicinal

In traditional medicine systems, spider flowers have been used for anti-inflammatory and antimicrobial purposes. Various Cleome species have been studied for phytochemical properties. [source]

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Dried Flower Arrangements

Craft

Seed pods and dried flower clusters can be dried for long-lasting dried flower arrangements and craft projects, maintaining their structure and subtle beauty. [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 flowers in early morning when stems are turgid. Cleome flowers last 5-7 days in a vase. For seed collection, allow flower clusters to dry on plant, then collect brown seed pods before they shatter. Seeds are viable for 3-4 years when stored in cool, dry conditions.

Fun Facts

🌱 The common name 'spider flower' comes from the long, prominent stamens that extend far beyond the petals, resembling spider legs.
🌱 Cleome seeds can remain viable in soil for years, resulting in volunteer plants appearing in subsequent seasons—a delightful gardening surprise.
🌱 Despite its delicate appearance, Señorita Rosalita is exceptionally heat and drought tolerant once established, thriving in conditions that stress many ornamental flowers.

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