How to Grow Purple Heart
iNaturalist
Purple Heart
Tradescantia pallida 'Purpurea'
shrubPurple Heart (Coloratus) is a tropical shrub prized for its striking deep purple foliage that intensifies in bright light. It produces small, delicate pink or purple flowers throughout warm months and is commonly grown as an ornamental houseplant or outdoor accent plant in warm climates. The velvety purple leaves make it a dramatic choice for containers and garden beds.
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 May 17≈ 30 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 10-11; grown as an annual or houseplant in cooler zones
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Seedling/Propagation
2-4 weeksYoung plants are small with lighter green to purple-tinged leaves. Stems are tender and delicate.
Keep soil moist; provide bright, indirect light initially. Root cuttings in water or moist soil within 2-3 weeks. Maintain warm temperatures (70-80°F).
Vegetative Growth
4-8 weeksPlant develops multiple stems and leaves rapidly, with foliage becoming increasingly purple. Growth is bushy and compact if pinched back.
Pinch back growing tips to encourage branching. Gradually increase light to full sun for best color. Feed every 2-4 weeks with balanced fertilizer. Water regularly.
Flowering
6-12 weeks (spring through fall)Small, delicate pink or purple flowers appear in clusters along the stems. Blooms appear continuously during warm growing season.
Continue regular watering and feeding. Flowers are attractive but not the main feature—foliage is the star. Deadhead spent flowers to encourage more blooms.
Mature Plant
Ongoing (perennial in warm zones)Fully established plant reaches 2-3 feet tall with dense, vibrant purple foliage and continuous flowering.
Maintain full sun for deepest purple color (shade causes greening). Prune to maintain shape and encourage bushiness. Feed monthly during growing season.
Winter Dormancy/Rest
2-4 monthsIn frost-prone zones, plant dies back or is overwintered indoors. Leaves may lighten in color.
Reduce watering significantly. Move indoors or bring potted plants inside before frost. Provide bright light and cool (60-70°F) temperatures. Resume regular care in spring.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap if severe. Increase humidity.
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Remove with rubbing alcohol on a cotton swab; apply insecticidal soap or neem oil weekly until resolved.
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Scrape off manually; treat with horticultural oil or neem oil spray.
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Use yellow sticky traps; spray with insecticidal soap or neem oil.
Uses
Cut Flower Arrangements
CraftThe striking purple stems and foliage are excellent for fresh flower arrangements and add dramatic color to bouquets. Cuttings last 1-2 weeks in water. [source]
Indoor Houseplant
HouseholdPerfect for brightening indoor spaces with vibrant purple color. Suitable for containers on sunny windowsills, patios, or as part of mixed planters. [source]
Garden Accent Plant
HouseholdCreates stunning visual contrast in landscape beds, borders, and containers, especially when paired with green-foliaged or silver-foliaged plants. [source]
Plant Propagation
CraftExtremely easy to propagate from cuttings, making it ideal for sharing with other gardeners or quickly expanding plantings at low cost. [source]
Pollinator-Friendly Plant
WildlifeSmall pink and purple flowers attract bees and other pollinators to the garden throughout the growing season. [source]
Harvest Tips
Purple Heart is ornamental, not harvested for food. Prune stems as desired for arrangements or to shape the plant; cuttings root easily in water for propagation. Best stems for cutting are firm and healthy with good color.
Fun Facts
- 🌱 Purple Heart's intense color comes from anthocyanin pigments that increase in bright sunlight—plants grown in shade turn greenish, but move them to full sun and the purple returns within days.
- 🌱 The plant is nearly indestructible and extremely easy to propagate; a single cutting placed in water will root in just 1-2 weeks without any rooting hormone needed.
- 🌱 Despite its tropical origin, Purple Heart is sometimes used as a cool-season annual in temperate gardens, providing season-long purple foliage from spring through frost.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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