Description

Product Name: Czech Black

Cultivar Name: Czech Black
Species: Capsicum annuum
Common Names: Czech Black, Czechoslovakian Black, Black Jalapeño
Type: Heirloom

Origin & Lineage

Geographic Origin:
Originally bred in Czechoslovakia, Czech Black is a stabilized heirloom cultivar developed for early fruiting, ornamental appeal, and culinary versatility. It reflects Eastern European preferences for moderate heat, rich color, and robust flavor.

Cultural Significance:
Czech Black peppers are valued for their striking coloration, mild heat, and juicy texture. They are grown both for culinary use and ornamental display, often featured in ristras, pickling jars, and holiday preserves.

Historical Notes:
Introduced to North American growers in the late 20th century, Czech Black quickly gained popularity among heirloom collectors and small-scale farmers. It is now cultivated globally for its early maturity, compact growth, and dual-stage culinary use.

Lineage / Breeder History

Parentage:
Capsicum annuum × regional black-fruited selection

Hybridizer:
Unspecified; stabilized by Czech breeders

Selected Traits:
• Glossy black immature pods ripening to garnet red
• Thick-walled, juicy flesh with cherry-red juice
• Mild heat concentrated in ribs and seeds
• Upright, bushy plant with purple-veined foliage
• High ornamental and culinary value

Stabilization Status:
Stable. Expresses consistently in F6–F8 generations. Minor variation in pod size and color intensity may occur depending on climate and soil fertility.

Heat Profile

Scoville Rating (SHU): 2,000–5,000 SHU
Perceived Heat: Mild to medium
Heat Characteristics:
Gentle warmth concentrated in the placenta and seeds. Comparable to mild jalapeño. Suitable for pickling, stuffing, and fresh use. Heat is noticeable but not overpowering, making it ideal for mixed audiences.

Flavor Profile

Tasting Notes:
• Juicy and sweet with notes of cherry, blackberry, and green herbs
• Slight smokiness when roasted
• Balanced acidity with clean finish

Aftertaste / Finish:
Bright, fruity finish with subtle spice

Ideal Pairings:
• Pickled rings for charcuterie boards
• Roasted halves in pasta and grain bowls
• Fresh slices in tacos and wraps
• Stuffed with cheese or meat for appetizers
• Candied slivers for spicy-sweet preserves

Fruit Characteristics

Shape:
Blunt conical pods with slight taper

Size:
6–7 cm long; 2–3 cm wide

Color Stages:
• Immature: Glossy black
• Mid-stage: Deep burgundy
• Ripe: Garnet red

Wall Thickness:
Medium to thick — ideal for stuffing and roasting

Texture & Skin:
Smooth, glossy surface with firm, juicy flesh. High moisture content.

Plant Details

Growth Habit:
Bushy and upright

Plant Height & Width:
Height: 60–90 cm
Width: 40–60 cm

Foliage:
Dark green leaves with purple veins and lavender-streaked flowers

Flower Color:
Lavender with white streaks

Days to Maturity:
65–80 days from transplant

Yield:
High — typically 15–25 pods per plant per flush

Czech Black plants are well-suited to container gardening, raised beds, and ornamental borders. Their compact form and striking foliage make them ideal for decorative gardens and edible landscapes.

Cultivation Information

Seed Count per Pack: 10 seeds
Germination Time: 7–14 days (Germinating Chilli Seeds)
Optimal Germination Temp: 24–30°C (Essential guide to ideal temperatures and humidity for chilli seed germination)
Light Requirements: Filtered sun (6–8 hrs/day)
Soil Preferences:
• pH: 6.5–6.8
• Rich, well-draining loam or potting mix (Easy DIY soil mixes)
• Benefits from calcium and phosphorus supplementation

Watering:
Maintain consistent moisture. Avoid waterlogging. Mulch recommended.

Fertilization:
Apply balanced NPK fertilizer every 2–3 weeks. Supplement with calcium to prevent blossom end rot.

Support:
Staking optional; plant remains upright

Pruning:
Pinch growing tips to encourage branching. Remove lower leaves to improve airflow.

Overwintering:
Cut back by 20 cm post-harvest and overwinter in a warm, light-filled space (≥15°C)

Storage Tips:
Store seeds in a cool, dry place. Refrigeration at 4–8°C extends viability. Avoid humidity and light exposure.

Notable Compounds

Capsaicinoid Content:
Low to moderate — primarily capsaicin and nordihydrocapsaicin

Volatile Flavor Compounds:
Linalool, pyrazines, and aldehydes contribute to fruity aroma

Pigments:
Anthocyanins (black), capsanthin (red), carotenoids

Nutritional Value:
High in vitamin C, antioxidants, and dietary fiber

Culinary & Cultural Use

Traditional Uses:
Used in Central European cuisine for pickles, sauces, and stuffed dishes. Popular in holiday preserves, ristras, and spicy jams.

Raw vs Cooked Flavor:
Raw: Crisp, juicy, and sweet
Cooked: Smoky, mellow, and slightly caramelized

Regional Dishes:
• Pickled Czech Black rings with garlic and vinegar
• Stuffed peppers with cheese and herbs
• Roasted halves in grain bowls and pasta
• Candied slivers for spicy-sweet preserves
• Black chili powder for rubs and spice blends

Storage / Drying / Preserving Tips:
• Thick walls suitable for roasting and freezing
• Pickles well in vinegar or brine
• Can be dried for black chili powder
• Ideal for candied applications and infused oils