How to Grow Imagination Purple
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Imagination Purple
Salvia splendens 'Imagination Purple'
flowerImagination Purple is a compact, ornamental sage variety prized for its striking deep purple flowers and dense, mounding growth habit. This tender perennial cultivar produces continuous blooms throughout the growing season and is commonly grown as an annual in temperate climates. It's an excellent choice for borders, containers, and color accents in garden beds.
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Example Imagination Purple timeline · Pittsburgh, PA (Zone 6b)
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Plant Imagination Purple
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Imagination Purple blooms
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Imagination Purple dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 10-11; grown as an annual in zones 3-9
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Seedling
2-3 weeksTiny seedlings with first true leaves appearing; slow initial growth
Keep soil warm (70-75°F) and moist but not soggy. Provide bright light immediately. Maintain high humidity to prevent damping off.
Vegetative
3-4 weeksPlant develops multiple stems and dense foliage; dark green leaves are prominent
Pinch back growing tips when 4-6 inches tall to encourage bushiness. Apply balanced fertilizer every 2 weeks. Ensure adequate light to prevent legginess.
Early Flowering
2-3 weeksFirst purple flower spikes appear at stem tips; plant continues to grow and branch
Begin light weekly feedings with flower-focused fertilizer (higher phosphorus). Continue pinching if you prefer more compact, fuller form. Ensure consistent watering.
Peak Flowering
8-12 weeks or until frostDense purple flower spikes covering the mounding plant; continuous blooming
Deadhead spent flowers regularly to encourage continuous blooming. Maintain consistent moisture and weekly fertilizer. Monitor for pests in warm weather.
Late Season
Varies by climateFlowering continues but may slow in extreme heat or cold; plant remains compact
In zones 10-11, can be pruned back lightly and overwintered. In cooler zones, enjoy until first frost. Reduce watering in winter dormancy.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with insecticidal soap or neem oil; increase air circulation; use yellow sticky traps for monitoring
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Mist foliage to increase humidity; spray with neem oil or miticide; remove heavily infested leaves
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Treat with insecticidal soap or horticultural oil; remove pests with rubbing alcohol on cotton swab; improve air circulation
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Rinse with strong water spray; apply insecticidal soap; use reflective mulches to deter
Uses
Edible Flowers
CulinarySalvia splendens flowers are mildly flavored and edible, suitable for garnishing salads, desserts, and beverages. They add visual appeal and a subtle herbal note to culinary presentations. [source]
Cut Flower & Arrangements
CraftThe striking purple flower spikes make excellent additions to fresh and dried flower arrangements. They provide color contrast and height in floral designs and maintain their color well when dried. [source]
Pollinator Attraction
WildlifeImagination Purple is highly attractive to hummingbirds, bees, and butterflies, making it an excellent choice for pollinator gardens. The continuous blooms provide extended nectar sources through the growing season. [source]
Garden Color & Landscaping
HouseholdUse in borders, containers, mass plantings, and mixed beds to provide season-long purple color. The compact mounding form works well in front of taller plants or as standalone landscape features. [source]
Traditional Herbal Use
MedicinalSalvia species have a long history in traditional medicine for sore throats and digestive support. While generally recognized as safe, consultation with healthcare providers is recommended before internal use. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Imagination Purple is not harvested for food but rather enjoyed for its ornamental blooms. Deadhead spent flowers regularly—pinch or cut flower spikes just below the lowest blooms—to promote continuous flowering throughout the season. Cut stems for fresh arrangements when spikes are half-open for best vase life (typically 7-10 days).
Fun Facts
- 🌱 Imagination Purple is part of the Salvia splendens complex, which is native to Mexico and was introduced to European gardens in the 19th century, becoming a Victorian favorite.
- 🌱 The name 'Imagination' from the seed company reflects breeding efforts to develop more compact, free-flowering cultivars compared to older tall varieties.
- 🌱 Hummingbirds can see the color purple more vividly than humans and are specifically attracted to Salvia's tubular purple flowers, which coevolved with these pollinators in their native habitat.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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