How to Grow Cayenne Long Pepper

Wikimedia Commons

Cayenne Long Pepper

Capsicum annuum var. longum

vegetable

Cayenne Long is a hot pepper variety prized for its elongated, tapered fruit that measures 7-10 inches in length and matures from green to bright red. These peppers are intensely spicy with a Scoville rating of 30,000-50,000 units and are widely used for fresh consumption, drying, and making hot sauces and spice blends.

When should you plant Cayenne Long Pepper 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.

Get my Cayenne Long Pepper timeline →

Example Cayenne Long Pepper timeline · Pittsburgh, PA (Zone 6b)

Plant Cayenne Long Pepper
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Cayenne Long Pepper
Around Jun 26

≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Cayenne Long Pepper dates for your own zip code.

Growing Conditions

☀️

Sun: Full sun, 8+ hours daily (essential for fruit development and heat)

💧

Water: Consistent moisture; water deeply 1-2 inches per week. Keep soil consistently moist but not waterlogged. More frequent watering in hot, dry conditions. Reduce watering slightly once fruiting begins to concentrate flavors.

📏

Spacing: 18 inches

📅

Days to maturity: 70-90 days from transplant to first red fruit (green peppers appear 60-70 days)

🌱

Planting depth: Seed depth: 1/4 inch; transplants: same depth as container (do not bury stem)

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost Aged manure Perlite or sand for drainage Balanced fertilizer (10-10-10 or 5-10-10)

Growing Zones

Find your zone →

Thrives in zones 9-11; can be grown as an annual in zones 5-8 with proper care and season extension

2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

Get my Cayenne Long Pepper timeline →

Growth Stages

Seedling

3-4 weeks

Tiny plants with 2-4 true leaves; delicate and vulnerable

Start seeds indoors 8-10 weeks before last frost. Maintain 75-85°F soil temperature. Provide grow lights 14-16 hours daily. Water gently to keep soil moist. Thin to strongest seedlings.

Vegetative Growth

4-6 weeks

Plants develop multiple branches and bushy foliage; 12-24 inches tall with increasingly thick stems

Harden off seedlings over 7-10 days before transplanting outdoors after last frost. Space 18 inches apart. Feed with balanced fertilizer every 3-4 weeks. Pinch off early flowers on young plants to encourage branching.

Flowering

3-4 weeks

Small white flowers appear in leaf axils; plants are actively blooming along entire stem length

Maintain consistent watering and heat (70-85°F ideal). Reduce nitrogen and increase potassium/phosphorus with a 5-10-10 or bloom fertilizer every 2-3 weeks. Ensure adequate pollination through air circulation or gentle hand-pollination.

Fruiting

4-8 weeks per pepper

Long, slender peppers develop at flower sites, progressing from green to bright red over weeks

Continue consistent watering (1-2 inches weekly). Apply balanced fertilizer every 3-4 weeks. Mulch around base to retain moisture and regulate temperature. Support heavy branches with stakes or cages. Peppers can be harvested green or left to mature to red (sweeter, hotter, more nutritious).

Harvest & Maturity

Ongoing until first frost or plant death

Peppers reach full elongated size and turn bright red; plant may continue producing until frost

Harvest regularly to encourage continued production. Use pruning shears to cut peppers cleanly. Plants in warm climates can produce year-round; in cooler zones, expect peak production in late summer/early fall.

Companion Planting

Plan your garden →

Plant with:

Basil Onion Garlic Thyme Parsley Marigold Nasturtium Carrot

Avoid planting near:

Fennel Kohlrabi Cabbage Brassicas (interfere with nutrient uptake) Other pepper or tomato plants (if managing disease)

Common Pests

Spray with neem oil or insecticidal soap; introduce ladybugs or lacewings; strong water spray to dislodge
Increase humidity; spray with neem oil or sulfur; introduce predatory mites; avoid excessive nitrogen
Yellow sticky traps; neem oil spray; insecticidal soap; reflective mulch to confuse adults
Remove infested fruits immediately; use pheromone traps; neem oil; rotate crops annually
Row covers on young plants; reflective mulch; spinosad spray; diatomaceous earth

Uses

🍳

Fresh Slicing & Cooking

Culinary

Red and green Cayenne Long peppers can be used fresh in salsas, stir-fries, and curry pastes, or sliced as a fiery garnish. They add intense heat and fruity undertones to dishes. [source]

🍳

Hot Sauce & Spice Production

Culinary

Cayenne Long peppers are the classic base for cayenne powder and are fermented or fresh-processed into hot sauces, sriracha, and spice blends used worldwide in cuisines from Asian to Mexican. [source]

🍳

Drying & Preservation

Culinary

Fully red Cayenne Long peppers dry exceptionally well, concentrating flavors and heat. Dried peppers can be ground into powder, rehydrated for cooking, or used whole in infusions. [source]

💊

Pain Relief & Anti-Inflammatory

Medicinal

Capsaicin in Cayenne peppers has been studied for topical pain relief in arthritis, neuropathy, and muscle soreness. Consuming cayenne may support circulation and metabolism. [source]

🏠

Natural Pest Deterrent

Household

Cayenne pepper powder made from dried peppers can be mixed with water and sprayed on plants as a natural insecticide and animal deterrent, or used around garden perimeters. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest green peppers 60-70 days after transplant for milder heat and tender texture, or wait 80-90+ days for bright red fully mature peppers with maximum Scoville heat and nutrient density. Cut peppers with pruning shears leaving 1-inch stem; avoid pulling to prevent branch damage. Harvest regularly to stimulate continuous flowering and fruiting. For drying, harvest fully red peppers and hang in warm, dry location for 2-3 weeks until completely brittle. Peppers can also be frozen fresh or processed into hot sauce.

Fun Facts

🌱 Cayenne peppers are named after the city of Cayenne in French Guiana, though they originated in Central and South America and were spread globally by Spanish conquistadors.
🌱 The heat in Cayenne Long peppers increases as the fruit matures and turns red; a fully red pepper can be 2-3 times hotter than the same pepper at the green stage.
🌱 Cayenne Long peppers were used medicinally by indigenous peoples for centuries before becoming a staple spice in European, Asian, and African cuisines.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Full Sun Mulch pH Pollination Transplant True Leaves

Shop Cayenne Long Pepper plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Cayenne Long Pepper planting timeline

Tell us your zip code and we'll calculate exactly when to start Cayenne Long Pepper seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Cayenne Long Pepper timeline →