How to Grow Red Finger
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Red Finger
Capsicum annuum var. longum
vegetableRed Finger is a long, slender hot pepper variety that matures from green to a vibrant red color. These peppers are moderately hot with a fruity flavor and are popular in Asian cuisines, particularly Thai and Vietnamese cooking. They're excellent for fresh use, drying, and making hot sauces and pastes.
When should you plant Red Finger in your zone?
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Example Red Finger timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Finger
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 Red Finger
Around Jul 1≈ 75 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Red Finger dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11. Can be grown as an annual in zones 5-9 with warm conditions.
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Seedling
3-4 weeksTiny seedlings with first true leaves appearing 7-10 days after germination. Plants are delicate and pale green.
Keep soil warm (75-85°F), maintain consistent moisture, provide bright light or grow lights 12-14 hours daily. Thin if overcrowded.
Vegetative Growth
4-6 weeksPlant develops multiple sets of leaves and branches, growing 12-18 inches tall. Stems strengthen and leaves become darker green.
Maintain warm temperatures (70-85°F), continue full sun exposure, fertilize weekly with balanced fertilizer (NPK 10-10-10), pinch off early flower buds to encourage branching.
Flowering
3-4 weeksSmall white or pale purple flowers appear at branch nodes. Flowers are self-pollinating but benefit from air circulation.
Ensure consistent watering, provide good air circulation, avoid over-fertilizing with nitrogen (switch to higher phosphorus), hand-pollinate if needed by gently shaking stems.
Fruiting & Development
4-6 weeksGreen finger-like peppers develop and elongate, reaching 3-4 inches long. Peppers gradually change color from green to red over 4-6 weeks.
Water consistently and deeply, fertilize every 2-3 weeks with balanced or slightly lower nitrogen fertilizer, support heavy branches if needed with stakes, mulch around base to retain moisture.
Harvest Maturity
Ongoing throughout seasonPeppers turn bright red and reach full size. Skin becomes shiny and slightly wrinkled when fully mature.
Continue watering consistently, harvest peppers regularly to encourage continued production, remove any diseased or damaged fruit.
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, maintain humidity, introduce predatory mites
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Spray with strong water stream, apply neem oil or insecticidal soap, encourage beneficial insects like ladybugs
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Use yellow sticky traps, spray with neem oil, maintain good air circulation
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Remove affected fruit immediately, use pheromone traps, apply insecticides if severe, rotate crops
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Use yellow sticky traps, spray with neem oil, maintain air circulation, introduce parasitic wasps
Uses
Fresh Cooking & Stir-Fries
CulinaryRed Finger peppers are ideal for Thai, Vietnamese, and Asian cuisine, commonly used fresh in stir-fries, curries, and phad thai. Their moderate heat and fruity flavor add depth to both traditional and contemporary dishes. [source]
Hot Sauces & Condiments
CulinaryThese peppers are excellent for making fresh hot sauces, sriracha-style pastes, and chili oil. Their natural fruity notes create complex, balanced heat in fermented or fresh condiment applications. [source]
Drying & Seasoning
CulinaryRed Finger peppers dry exceptionally well, creating flavorful dried chili for grinding into powder, flakes, or whole dried peppers for cooking. Dried versions intensify in heat and develop deeper, smokier flavors. [source]
Capsaicin & Pain Relief
MedicinalRed peppers contain capsaicin, a compound with anti-inflammatory and analgesic properties traditionally used in folk medicine and modern pain management applications. [source]
Natural Pest Deterrent
HouseholdDried Red Finger peppers can be made into a spray to deter garden pests and insects from other plants, offering a natural alternative to synthetic pesticides. [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 peppers when they reach full red color for maximum heat and flavor (usually 75-90 days after transplanting). Use sharp scissors or pruning shears to cut from the stem, leaving 1-2 inches of stem attached. Peppers can be picked green earlier if preferred for milder heat. Regular harvesting encourages continued production. Peak harvest season is mid-summer through first frost.
Fun Facts
- 🌱 Red Finger peppers are believed to have originated in Southeast Asia and are particularly prized in Thai cuisine, where they're called 'phrik chi-fa' and are used extensively in curries and pastes.
- 🌱 The heat level of Red Finger peppers typically ranges from 50,000-100,000 Scoville Heat Units (SHU), making them moderately hot—hotter than jalapeños but milder than habaneros.
- 🌱 Pepper plants can produce fruit for 2-3 years if brought indoors during winter in cold climates, making them viable as perennial houseplants with proper care.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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