How to Grow Purple Heart
Wikimedia Commons
Purple Heart
Tradescantia pallida
shrubPurple Heart is a tropical perennial shrub prized for its vibrant purple foliage that intensifies with sunlight exposure. Native to Mexico, it produces delicate pink or lavender flowers and is commonly grown as an ornamental in gardens and containers. This fast-growing plant adds striking color contrast to landscaping and is relatively low-maintenance.
When should you plant Purple Heart 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.
Example Purple Heart timeline · Pittsburgh, PA (Zone 6b)
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Plant Purple Heart
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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Harvest Purple Heart
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Purple Heart dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-12; grown as an annual in cooler zones
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Get my Purple Heart timeline →Growth Stages
Seedling
2-3 weeksTiny green to purple-tinged leaves emerge; delicate and compact growth
Keep soil moist, provide bright indirect light, maintain warmth (65-75°F), ensure humidity
Vegetative Growth
4-8 weeksPlant develops multiple stems and leaves rapidly; purple coloration deepens with sun exposure
Increase light gradually to full sun, pinch tips to encourage bushier growth, fertilize every 2 weeks with balanced fertilizer
Established Plant
Ongoing through growing seasonFull shrubby form with dense foliage; purple color is vibrant and consistent
Maintain full sun exposure, water regularly, fertilize monthly during growing season, prune to shape as desired
Flowering
Summer through fall (extended in warm climates)Small pink, purple, or lavender flowers appear in terminal clusters
Flowers are secondary to foliage; continue regular care; deadheading not necessary but improves appearance
Dormancy/Winter
3-4 months (or year-round in tropics)Growth slows significantly; foliage may lose some intensity in cooler zones or indoors
Reduce watering frequency, minimize fertilization, protect from frost in zones below 9b, can be cut back severely if needed for rejuvenation
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity, spray with water, use neem oil or insecticidal soap if severe
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Yellow sticky traps, neem oil, insecticidal soap, reflective mulch
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Spray with neem oil, wipe affected areas with alcohol-soaked cotton, remove heavily infested leaves
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Horticultural oil, neem oil, manual removal, pruning of heavily infested branches
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Improve air circulation, avoid overhead watering, remove affected leaves, use fungicide if necessary
Uses
Not Culinary
CulinaryPurple Heart is not edible and should not be consumed. All parts are for ornamental use only. [source]
Ornamental Landscaping & Containers
HouseholdWidely used as a tropical accent plant in gardens, borders, and containers to provide year-round purple color contrast. Popular in hanging baskets, window boxes, and mixed container plantings. [source]
Floral Arrangements & Cut Foliage
CraftPurple stems and foliage are excellent for fresh or dried floral arrangements and craft projects. The vibrant color and delicate flowers add visual interest to bouquets. [source]
Pollinators & Wildlife
WildlifeThe small pink and purple flowers attract hummingbirds, butterflies, and bees, making it valuable for pollinator gardens. [source]
Traditional Use
MedicinalIn some traditional medicine systems, Tradescantia species have been used for anti-inflammatory and wound-healing purposes, though scientific evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Purple Heart is grown for foliage rather than harvest in the traditional sense. Regularly pinch back stems and prune to encourage bushier, fuller growth and maintain desired shape. Cuttings can be harvested year-round for propagation—cut 4-6 inch stem segments below a node and root in water or moist soil. Remove spent flower clusters for tidiness.
Fun Facts
- 🌱 Purple Heart's intense purple color is not from pigments like anthocyanins alone—the color intensifies dramatically with increased sunlight exposure, making it a living indicator of UV intensity.
- 🌱 The plant is native to Mexico and Central America, where it's known as 'Morado' or 'Bermudan Inch Plant,' and it can grow vigorously in tropical climates, sometimes considered invasive in certain regions.
- 🌱 Purple Heart is incredibly easy to propagate—simply place a cut stem in water and roots will develop within 1-2 weeks, making it perfect for sharing with other gardeners or quickly filling garden spaces.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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