NuMex Twilight

Twilight is an ornamental pepper variety developed for its striking colour display, featuring upright fruits that transition through purple, yellow, orange, and red stages on the same plant. This compact variety is both decorative and edible, producing small conical peppers with moderate heat and a slightly sweet flavour.

History & lineage

Twilight - properly "NuMex Twilight" - is an ornamental chilli cultivar developed at New Mexico State University's Chile Pepper Institute, part of the institution's broader chilli breeding programme that has produced both major commercial cultivars and ornamental varieties over the past century. NuMex Twilight was specifically bred for visual rather than commercial culinary appeal. The defining visual characteristic is the dramatic colour transition that all pods on a single plant simultaneously display through different stages: purple unripe pods, ripening through yellow to orange to deep red, with all colours present on the same plant at once. The effect creates a striking decorative display - a single mature plant can show small upright pods in five distinct colours simultaneously, providing visual interest unlike any conventional chilli. The variety belongs to a small but expanding category of "ornamental edible" peppers - chillies bred for decorative gardening and edible landscaping rather than for commercial cooking. NuMex Twilight, like Bolivian Rainbow, Black Pearl, and Chinese 5-Color, occupies this niche where visual appeal is the primary breeding goal. The chillies remain genuinely edible (NuMex Twilight delivers genuine medium heat at 30,000-50,000 SHU and reasonable annuum cooking-pepper flavour), but the pods are typically grown for ornamental rather than culinary purposes. The broader category of multi-colour-pod ornamental chillies has expanded significantly in 21st-century horticulture. NuMex Twilight, dating from the late 20th century, was an early entry in what has since become a competitive market for visually distinctive ornamental chilli varieties. Closely related varieties - notably Chinese 5-Color, sometimes also called "NuMex Twilight" in commercial seed catalogues despite being a distinct cultivar - share the multi-colour pod display in slightly different combinations. UK home gardeners have adopted NuMex Twilight enthusiastically for ornamental container growing, where the variety performs well in patio cultivation and provides extended visual interest through the long pod-display season.

Culinary uses

Primarily ornamental but edible; suitable for fresh eating, pickling, and decorative garnishes. The colorful peppers add visual appeal to salsas and salads.

Growing it in the UK

Annuum is the forgiving group, and the right place to start. Seed germinates readily in warmth, the season is short enough to finish outdoors in a good summer, and February to early March is soon enough to sow. Germination is given as 7-14 days. At 70 days to maturity it is one of the quick ones: sown in March, it will be picking well before the light goes.

At 30–45 cm it is a windowsill or small-pot plant — a 3-litre pot is plenty, and it will not need staking. The compact habit makes it a good container plant and an easy one to keep on a windowsill. The record puts the yield at heavy, so start feeding weekly with something high in potassium as soon as the first fruit sets — a plant carrying that much will run out of steam otherwise.

It is hot enough that gloves are sensible when you are preparing a batch, and that a seeded pod is a very different proposition from a whole one. Thin walls dry quickly, which makes a glut easy to deal with.

Read from this variety's own record — the figures are in the panel opposite.