Baccatum Chilli

Capsicum baccatum — commonly known as ají — is one of five domesticated chilli species, originating from South America, particularly Peru. Pungency spans from mild to hot; the popular ají amarillo registers 30,000–50,000 Scoville units, while cultivars such as Ají Limon reach 15,000–30,000 with a distinctive citrus note. Plants are vigorous, frost-tender shrubs that require a long, warm growing season and perform best when started indoors well before outdoor temperatures stabilise. Rich, well-drained soil and consistent moisture are essential for good fruit set.

Growing

Start seeds indoors 10 weeks before outdoor conditions are suitable. Sow 0.6 cm deep into individual cells or small pots filled with fertile, free-draining compost. Germination is reliable only when soil temperature is sustained at 23–30 °C; use a heat mat if necessary. Germination takes 7–14 days. Grow seedlings on under bright light, maintaining air temperatures above 18 °C. Transplant outdoors only once nights consistently stay above 15 °C and soil is warm. Space plants 50 cm apart in a sheltered, full-sun position.

Care

Water consistently to keep soil evenly moist — fluctuating moisture causes fruit drop and blossom-end rot. Avoid high-nitrogen fertilisers, which push leafy growth at the expense of fruit; use a balanced or low-nitrogen feed once flowering begins, switching to a potassium-rich feed as fruits set. Stake taller plants to support fruit-laden branches. In cooler climates, grow under glass or in a polytunnel to maximise the season and protect from wind.

Harvest

Fruits can be harvested green once they reach full size, typically 70–90 days from transplant, but maximum flavour and heat develop when left to ripen fully. Ají Limon turns from green to bright yellow at full ripeness, usually 70–110 days from transplant. Cut fruits with scissors to avoid snapping branches. Regular picking encourages continued production; the harvest window extends up to 60 days with successive picking.

In the kitchen

Use fresh ají chillies in salsas, ceviches, marinades, and stir-fries where their fruity, citrus-forward heat shines. Blend ripe yellow ají limon into hot sauces or ají amarillo paste for Peruvian-inspired cooking. The flesh is also excellent grilled or roasted. Dried pods can be ground into chilli powder or rehydrated in sauces and stews.

Storing

Fresh ripe chillies keep for up to 2 weeks in a paper bag in the refrigerator crisper. For longer storage, dry whole pods at 50–60 °C in a dehydrator or low oven until brittle, then store in airtight containers away from light for up to 12 months. Alternatively, freeze fresh or roasted flesh in sealed bags for up to 6 months. Fermented or vinegar-pickled preparations last 6–12 months refrigerated.