Capsicum pubescens
mountain peppers

The hairy high-altitude chilli adapted to cool climates

The high-altitude chilli adapted to cool climates

Most chillies expect heat. Capsicum pubescens expects altitude. Thick-walled fruits develop slowly on hairy-leaved plants that tolerate cool nights far better than any other cultivated species. The seeds are dark, almost black, and the flavour is fuller and deeper than its size suggests.

Instead of chasing summer, the plant waits for steady conditions. Where other chillies rush to finish before autumn, this one continues calmly, as though temperature matters more than season.

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  • capsicum pubescens What sort of chilli is this?

    The quick picture

    • Temperament: slow, steady, highland adapted
    • Typical heat: medium → hot
    • UK success: surprisingly good in mild summers
    • Time to fruit: late but prolonged
    • Best role: cooked dishes and sauces

    A fruit or a veg? The unusual pubescens chilli.. a Rojo Rocoto.

  • capsicum pubescens How to recognise it

    What to look for

    • hairy leaves and stems
    • purple flowers
    • black seeds
    • apple-shaped or lantern pods
    • thick walls and heavy fruits

    The signature hairy leaves are even visible on this seedling.

  • capsicum pubescens Why does it grow like that?

    Where it comes from

    This species comes from the Andean highlands, where days are bright but nights are cool.

    Instead of evolving speed, it evolved tolerance — able to set fruit where other chillies stop growing. The hairy leaves reduce moisture loss and shield the plant from intense mountain light, while the purple flowers carry protective pigments against cold and ultraviolet exposure.

    That is why it often succeeds outdoors in climates that frustrate tropical species.

  • capsicum pubescens Have I eaten this before?

    Familiar varieties

    • Peruvian rocoto
    • Bolivian locoto
    • Mexican manzano
    • Canario types
    • Perón types

    • Purple flowers of the Rocoto

    • large ripening Rocoto

    • The black seeds of the Chocolate Rocoto

    • Chocolate Rocoto pods ripening

  • capsicum pubescens How hot is it really?

    The heat character

    The heat is firm but not sharp, carried by thick flesh and lasting longer than annuum warmth.

    Typical range: 30,000 – 100,000 SHU
  • capsicum pubescens What do people use it for?

    In cooking

    Here the chilli behaves more like a vegetable than a spice.

    • stuffed and baked dishes
    • cooked sauces
    • stews
    • fresh salsas where body matters

    Peruvian Stuffed Rocotos or Rocoto Relleno.

  • capsicum pubescens Will it grow for me?

    In UK climate

    Often easier than tropical species outdoors.

    What helps: cool nights, stable conditions
    What confuses growers: difficult germination, slow ripening,
    Reality: it dislikes heat more than cold

    Giant sized Rocoto fruit on a sprawling vine of a plant.

  • capsicum pubescens Where it falls short

    Its limitations

    • slow to start
    • struggles in very hot greenhouses
    • fewer fruits than small-fruited species

  • capsicum pubescens So what’s the point of it?

    The takeaway

    This is the chilli for cooler places. Not fast, but remarkably reliable once established.

    In the garden it rewards patience rather than heat — fruit arriving late, then continuing well after most plants have slowed down. The flavour is almost sweet and vegetable-like, thick-fleshed and oddly substantial; it doesn’t quite behave like a chilli at all.

    Ripe Rocoto, freshly pickling and ready for a good stuffing.

  • More Chillies

    Other Chilli Species

    Find out more about the other major species of chillies.

    Annuum — the world’s cooking chillies
    Chinense — the super-hot group
    Baccatum — citrus-like from South America
    Frutescens — small upright sauce peppers
    Chilli Species — main menus

World of Chillies was set up by Sarah Hunt in 2011 to promote chilli growing and the enjoyment of everything hot and spicy.

UK Company No. 07860204.
VAT reg. 223126942

Originating in the mountain regions of Peru and Bolivia, where days are bright but nights are cool.

Scoville Heat Units (SHU) measure how hot a chilli feels — essentially how much capsaicin it contains. A Moruga Scorpion at about 2,000,000 SHU is roughly four hundred times hotter than a jalapeño at around 5,000 SHU.