How to Grow Scaevola

Scaevola

Scaevola aemula

flower

Scaevola is a tender perennial flowering plant known for its delicate, fan-shaped blue, purple, pink, or white flowers that bloom prolifically throughout the growing season. Native to Australia, it's prized as a ornamental groundcover and container plant that thrives in warm climates and adapts well to hanging baskets and mixed borders.

Looking for a specific variety?

Blue Fan Purple Fan Pink Fan Petite Wonder Bombay Blue Alba

Growing Conditions

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Sun: Full sun to partial shade; 6-8 hours of sunlight daily for best flowering

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Water: Keep consistently moist but not waterlogged; allow soil surface to dry slightly between waterings. Water more frequently during hot weather and in containers. Reduce watering in winter dormancy.

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Spacing: 12-18 inches

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Days to maturity: 30-45 days to first flowers

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Planting depth: Surface sow seeds; transplants at same depth as nursery container

Soil

Type: Well-draining potting soil or sandy loam

pH: 6.0-7.0

Amendments:

Perlite for drainage Compost for organic matter Sand to improve drainage in heavy soils

Growing Zones

Find your zone →

Thrives in zones 10-11; grown as an annual in cooler zones

10a 10b 11a 11b

Growth Stages

Seedling

3-4 weeks

Tiny seedlings emerge with delicate cotyledons; very slow-growing initially

Maintain high humidity and consistent moisture; provide bright indirect light; thin seedlings if overcrowded; transplant to individual pots at 2-3 true leaf stage

Vegetative Growth

4-6 weeks

Young plant develops trailing or mounding habit with increasingly dense foliage; bushy appearance fills in

Pinch back growing tips when 3-4 inches tall to encourage branching; maintain consistent moisture; fertilize every 2 weeks with balanced fertilizer; ensure good drainage

Flowering

8-12 weeks or more

Fan-shaped flowers emerge along stems in clusters; colors include blue, purple, pink, or white with lighter centers; profuse blooming occurs

Deadhead spent flowers to encourage continuous blooming; maintain regular watering and feeding; reduce nitrogen to avoid excessive foliage at expense of flowers; provide full sun for maximum flower production

Peak Bloom & Maturity

Continues throughout warm season

Plant is fully developed with abundant trailing or mounding growth covered in flowers; flowers bloom continuously in warm weather

Continue deadheading; fertilize weekly with dilute balanced or slightly lower-nitrogen fertilizer; adjust watering based on rainfall and heat; pinch back any overly long stems to maintain shape

Winter Dormancy (Zones 10-11)

2-4 months or overwinter indoors

Plant may slow growth or go dormant in cooler months; flowering may diminish or stop entirely

Reduce watering significantly; apply minimal fertilizer; protect from frost if temperatures drop below 50°F; cut back in spring to promote fresh growth; treat as annual and replant in cooler zones

Companion Planting

Plan your garden →

Plant with:

Petunias Bacopa Diascia Calibrachoa Verbena Dusty Miller Ivy Ornamental grasses

Avoid planting near:

Plants requiring dry conditions Drought-tolerant succulents in poorly-draining soil

Common Pests

Spray with water to dislodge; use insecticidal soap or miticide if severe; increase humidity to discourage mites
Yellow sticky traps to monitor and control; spray with insecticidal soap or horticultural oil; ensure good air circulation
Allow soil surface to dry between waterings; use sand topdressing; apply gnat control products if needed
Spray with insecticidal soap; remove heavily infested stems; isolate affected plants

Uses

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Edible Flowers

Culinary

Scaevola flowers are edible with a slightly sweet taste and are used as garnishes in salads, desserts, and beverages. They add delicate color and visual appeal to culinary presentations. [source]

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Container Gardening & Hanging Baskets

Household

Scaevola's trailing habit makes it ideal for hanging baskets, containers, and mixed patio displays. Its prolific flowering and low maintenance make it a popular choice for summer garden decorations. [source]

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Pollinator Attraction

Wildlife

The abundant flowers attract bees, butterflies, and other beneficial pollinators to the garden. Scaevola provides nectar-rich blooms throughout the growing season. [source]

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Cut Flower Arrangements

Craft

Delicate scaevola sprigs can be used in fresh flower arrangements and floral designs. The flowers remain fresh for several days when properly conditioned. [source]

Harvest Tips

Scaevola is not harvested for food; deadhead spent flowers regularly to promote continuous blooming throughout the season. Pinch back stems as needed to maintain desired shape and density.

Fun Facts

🌱 Scaevola comes from the Latin word 'scaeva' meaning 'left-handed,' referring to the asymmetrical fan-shaped flowers that appear to favor one side.
🌱 The plant is native to Australia and other tropical regions, which explains its preference for warm weather and intolerance of cold temperatures below 50°F.
🌱 Scaevola flowers are pollinated by native Australian birds and insects in their natural habitat, making them a valuable nectar source in tropical gardens.

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