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Mount Washington Arboretum · Baltimore, MD

Pepper

Red Biquinho

Capsicum chinense

Annual

Care at a glance

☀️ LightFull sun (8 hrs)
💧 WaterDeep, consistent; 1–1.5 inches/week
📅 Days to maturity70–90
🌀 LifecycleAnnual
🗺 Hardiness zoneAnnual (frost-sensitive)
🌡 Temperature60°F – 90°F
↕ Height18–36"
↔ Spread18–24"
📏 Spacing18" apart

Soil

pH: 6.0–6.8  ·  Rich, warm, well-drained

Nutrients & Fertilizing

Balanced; high K at fruiting; avoid excess N

Baltimore Planting Windows

Based on last frost ~May 1, first frost ~Oct 31 (Zone 7a)
🪴 Transplant out (spring)May 15 – Jun 1

About this plant

Red Biquinho is a small, heart-shaped sweet pepper from Brazil prized for its thin walls, tender texture, and mild, fruity flavor. It's equally ornamental and culinary, producing abundant small red fruits that look striking on the plant and work well for fresh eating, roasting, or pickling. Gardeners grow it for its prolific yields, compact size, and the fact that it ripens reliably even in cooler climates.

Germination

Seeds need warm soil temperatures between 70–85°F (21–29°C) to germinate reliably, typically sprouting in 10–14 days. They prefer darkness during germination, so cover trays or pots with a propagation dome or plastic wrap until sprouting occurs. No pre-treatment is necessary, but soaking seeds for 1–2 hours before sowing can slightly accelerate germination.

How to plant

Start seeds indoors 8–10 weeks before your last frost date in cell trays or peat pots filled with seed-starting mix, sowing seeds about 1/4 inch deep. Keep soil consistently moist and warm (70–80°F) until emergence. Transplant seedlings into 4-inch pots once they have true leaves, then harden them off and plant outdoors after the last frost, spacing plants 18–24 inches apart in full sun. Direct sowing is not recommended because the long growing season makes indoor starting essential.

Growing tips

Water consistently but don't overwater; peppers prefer evenly moist soil, not soggy conditions. Feed every 2–3 weeks with a balanced fertilizer once flowering begins, or use a slow-release fertilizer at planting time. Biquinho plants are naturally bushy and compact, so staking is usually unnecessary, but pinching the main stem when young encourages branching and more fruit. Watch for spider mites in hot, dry conditions and aphids on new growth; spray with insecticidal soap if needed. Consistent watering and mulching help prevent blossom-end rot and sun scald on exposed fruit.

Harvesting

Pick fruits when they reach full red color for the best sweet flavor and soft texture; mature fruits are typically 1–1.5 inches long. Harvest regularly to encourage continued production throughout the season. Fruits can be eaten fresh off the plant, roasted whole, or pickled. They store well in the refrigerator for up to 2 weeks or can be frozen for later use in cooked dishes.

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