How to Grow Stellar Red
Wikimedia Commons
Stellar Red
Capsicum annuum 'Stellar Red'
vegetableStellar Red is a premium bell pepper variety known for its deep red color, large blocky fruits, and exceptional sweet flavor. Bred for commercial production but excellent for home gardens, it produces abundant yields of thick-walled peppers ideal for fresh eating and cooking. The plants are vigorous and disease-resistant, making them reliable performers in most growing conditions.
When should you plant Stellar Red 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 Stellar Red timeline · Pittsburgh, PA (Zone 6b)
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Plant Stellar Red
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 Stellar Red
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Stellar Red dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10; grow as annual in cooler zones or start indoors early
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Seedling
3-4 weeksTiny cotyledons emerge; first true leaves appear within 1-2 weeks. Seedlings are delicate with small stems.
Start seeds indoors 8-10 weeks before last frost. Provide bright light (16 hours daily under grow lights), warm soil (75-80°F), and keep consistently moist. Use a seedling heat mat.
Vegetative Growth
4-6 weeks after transplantingPlant develops sturdy stems, multiple leaf sets, and a bushy canopy. No flowers yet; foliage is glossy, medium-green.
Harden off seedlings over 7-10 days before transplanting. Transplant after last frost when soil is warm (60°F+). Pinch out the first flower buds to encourage branching and stronger plant structure. Keep well-watered and fertilize every 2 weeks with balanced fertilizer (10-10-10).
Flowering
2-3 weeks (flowers continuously as plant matures)Plant produces small, white flowers in leaf axils. Multiple flowers appear simultaneously.
Ensure consistent watering and good air circulation to prevent flower drop. Switch to slightly higher phosphorus fertilizer (5-10-5) to encourage fruit set. Avoid excessive nitrogen. Maintain 70-85°F daytime and 60-70°F nighttime temperatures for optimal fruit set.
Fruiting & Maturation
4-6 weeks green stage, then 2-3 weeks red color developmentSmall green peppers develop from pollinated flowers and enlarge over 4-6 weeks. Peppers gradually turn red as they mature, developing thick walls and full sweetness.
Continue consistent watering; mulch around plants to retain moisture and regulate soil temperature. Support branches bearing heavy fruit with stakes or cages. Reduce nitrogen fertilizer; apply potassium-rich fertilizer (5-5-10) every 2 weeks. Hand-pollinate with a small brush if bee activity is low.
Harvest & Plant Senescence
6-8 weeks of ongoing harvestPeppers reach full red color and maximum size (4-5 inches). Plants may slow production in extreme heat or as season ends.
Harvest peppers with a sharp knife or pruners when fully red and firm. Leaving some peppers on the plant encourages continued flowering and fruit set. In cooler zones, harvest before first frost.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with insecticidal soap or neem oil; introduce ladybugs or parasitic wasps; strong water spray to dislodge
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Remove and destroy infested fruit immediately; use row covers early season; apply spinosad or neem oil; rotate planting location
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Increase humidity; spray with water; use neem oil or miticide; maintain good air circulation
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Yellow sticky traps; insecticidal soap; neem oil; reflective mulch; encourage natural predators
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and
(Fungal diseases)
Remove infected leaves; improve air circulation; avoid overhead watering; use copper fungicide; ensure 3-year crop rotation
Uses
Fresh eating and salads
CulinaryStellar Red peppers are exceptionally sweet and crisp, making them ideal for fresh consumption in salads, slaws, and crudités. Their thick walls and large size make them perfect for stuffing with grains, meats, or vegetables. [source]
Roasting and cooking
CulinaryThe thick walls char beautifully when roasted whole or halved. Roasted Stellar Red peppers can be peeled, frozen, and used in soups, stews, and Mediterranean dishes year-round. [source]
Preservation and storage
HouseholdStellar Red peppers can be canned, frozen, or dried for long-term storage. Their firm flesh and low moisture content make them ideal for preservation without significant quality loss. [source]
Vitamin C and antioxidant content
MedicinalRed peppers are extremely rich in vitamin C and contain powerful antioxidants like capsanthin and carotenoids, which support immune function and reduce inflammation. One pepper provides nearly 150% of the daily recommended vitamin C intake. [source]
Pollinator attraction
WildlifeThe abundant white flowers attract bees, butterflies, and other pollinators to the garden, supporting garden biodiversity and increasing fruit set. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Stellar Red peppers can be harvested green (immature) or allowed to fully ripen to deep red, which takes an additional 2-3 weeks after the mature green stage and develops maximum sweetness and vitamin C content. Use a sharp knife or pruners to cut peppers from the stem rather than pulling, which avoids damaging branches. Harvest regularly to encourage continued production. Cut peppers before the first frost in cool climates. Peppers continue to ripen slightly after harvest if kept at room temperature.
Fun Facts
- 🌱 Stellar Red peppers are 'creeping maturity' fruits—they must ripen on the plant to develop their signature deep red color and sweetness. Unlike some fruits, they cannot be ripened in storage.
- 🌱 Red peppers are actually mature green peppers that have continued photosynthesizing and accumulating chlorophyll-destroying carotenoid pigments. The transition from green to red takes 2-3 additional weeks of prime growing conditions.
- 🌱 Stellar Red was developed through conventional breeding for commercial greenhouse and field production, combining disease resistance with exceptional flavor and yield—making it equally outstanding for home gardeners.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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