How to Grow Xtreme Red
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Xtreme Red
Capsicum annuum 'Xtreme Red'
vegetableXtreme Red is a hybrid bell pepper variety known for its deep, vibrant red color and exceptional flavor when fully mature. The plants are compact and highly productive, making them excellent for both garden and container growing. These peppers have thick walls and sweet taste, ideal for fresh eating, roasting, and cooking.
When should you plant Xtreme Red in your zone?
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Example Xtreme Red timeline · Pittsburgh, PA (Zone 6b)
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Plant Xtreme 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 Xtreme Red
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Xtreme Red dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9 as an annual; can be grown as a tender perennial in zones 10-11
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Get my Xtreme Red timeline →Growth Stages
Seedling
3-4 weeksYoung plants with first true leaves appearing; very tender and sensitive to temperature fluctuations.
Start seeds indoors 6-8 weeks before last frost. Maintain soil temperature of 70-80°F. Provide grow lights 12-16 hours daily. Keep soil consistently moist. Thin to strongest seedlings.
Vegetative Growth
3-5 weeksPlant develops multiple stems and leaves; bushy growth pattern typical of compact hybrid variety. No flowers yet.
Harden off seedlings gradually before transplanting. Transplant outdoors after last frost when soil is warm (65°F+). Apply balanced fertilizer every 2-3 weeks. Pinch early flower buds to encourage branching if desired.
Flowering
2-4 weeksSmall white or pale yellow flowers appear at leaf nodes; very prolific blooming in Xtreme Red variety.
Maintain consistent watering and don't let soil dry out between waterings. Apply mulch to retain moisture and regulate temperature. Begin fertilizing with higher phosphorus formula to support fruit set. Ensure adequate pollination (bees, or gently shake flowers).
Fruiting & Color Development
4-6 weeks per fruitGreen peppers form and enlarge; gradually mature from green to bright red over 3-4 weeks. Thick-walled fruits develop characteristic deep red color.
Support heavy fruit with stakes or cages to prevent branch breakage. Reduce nitrogen fertilizer; continue phosphorus and potassium. Maintain 1.5-2 inches weekly watering. Mulch heavily to keep roots cool.
Harvest & Maturity
Continuous until frostPeppers reach full size and develop intense red color when fully mature. Plant continues producing new flowers and fruit.
Harvest ripe red peppers regularly to encourage continued production. Use sharp pruners to avoid damaging plant. Leave some peppers on plant to develop maximum sweetness. Continue watering and fertilizing for fall harvest in mild climates.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with strong water stream; use neem oil or insecticidal soap weekly. Increase humidity around plants. Remove heavily infested leaves.
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Spray with insecticidal soap or neem oil. Introduce beneficial insects like ladybugs. Use reflective mulches to deter.
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Remove and destroy infested fruit immediately. Use pheromone traps. Apply spinosad or pyrethrin-based insecticides if populations are high.
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Yellow sticky traps; spray neem oil or insecticidal soap. Use row covers on seedlings. Encourage natural predators.
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Remove infected leaves promptly. Avoid wetting foliage when watering. Ensure adequate air circulation. Use copper fungicide if severe.
Uses
Fresh Eating & Salads
CulinaryXtreme Red peppers are exceptionally sweet when fully ripe, perfect for eating raw in salads, slaws, and fresh dishes. Their thick walls make them ideal for stuffing whole or cutting into attractive rings for crudités. [source]
Roasting & Cooking
CulinaryThe thick, meaty walls are excellent for roasting, grilling, and sautéing. When roasted, the skin becomes sweet and tender, ideal for soups, stews, and pasta dishes. [source]
Vitamin C & Antioxidants
MedicinalRed peppers are significantly higher in vitamin C than green peppers and contain lycopene and other antioxidants that support immune health and may reduce inflammation. [source]
Pepper Flakes & Spice
HouseholdFully ripe Xtreme Red peppers can be dried and ground into flakes or powder for use as a spice and seasoning throughout the year. Sweet paprika can be made from these mild peppers. [source]
Pollinator Support
WildlifeThe abundant flowers of Xtreme Red peppers attract honeybees, bumblebees, and other pollinators, making them valuable for supporting local ecosystems and improving garden pollination. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pick peppers when they reach full red color and firm texture for maximum sweetness and flavor. Peppers can be harvested at green stage if needed, but allowing them to ripen to red increases sugar content and vitamin C. Use sharp shears or pruners to cut peppers with 1-inch stem attached. Regular harvesting promotes continued flowering and higher yields. Peak harvest typically occurs mid-summer through early fall.
Fun Facts
- 🌱 Red peppers are actually fully mature green peppers that have been allowed to ripen on the plant; this extended ripening increases their vitamin C content by up to 70% compared to green peppers.
- 🌱 The 'Xtreme Red' name refers to the exceptionally vibrant red color and robust production of this hybrid variety, which was bred specifically for home gardeners seeking compact, productive plants.
- 🌱 Peppers were first domesticated in Mexico over 9,000 years ago and were unknown to Europe until Columbus brought them back from the Caribbean in 1492.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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