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Last edited on January 29, 2020. View history

poblano pepper Poblano Pepper

Also known as ancho pepper (en) ancho chile pepper (en)

A variety of chili pepper

How to sow poblano pepper: Direct seed indoors, transplant seedlings outside after hardening off

Sun requirement for poblano pepper: Plant in Full Sun

Poblanos are mild chili peppers native to Mexico. The plants produce medium to large peppers that are 7-15cm long and deep green. They are commonly harvested while still green, but can also be left on the plant until they fully ripen and turn red. Red poblanos are significantly spicier and more flavorful than green ones. Ancho chiles are dried red poblano peppers. Green poblanos are frequently grilled, stuffed, or roasted. Green poblanos usually have a mild flavor and a Scoville rating of 1,000–1,500 units, but they can sometimes be hotter. Poblanos are sometimes sold as Pasilla Peppers, although Pasilla is the dried Chilaca chili pepper.

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Growstuff is a free, community-run site for people who grow food. Keep track of what you plant and harvest, find seeds to swap, and see what is growing near you. Join to record your own poblano peppers.

Poblano pepper facts

Lifespan

Annual living and reproducing in a single year or less

Height × spread

50cm × 40cm

Row Spacing

45cm
Optimal temperature 17–30 °C
Absolute temperature 8–35 °C
FAO EcoCrop
Optimal rainfall 600–1250 mm/year
Absolute rainfall 500–1700 mm/year
FAO EcoCrop
Optimal soil pH 5.5–6.8
Absolute soil pH 4.5–7
FAO EcoCrop

Crop cycle

60–180 days
FAO EcoCrop

Max altitude

3000 m
FAO EcoCrop

Optimal light

very bright
FAO EcoCrop
What are growing degree days?

A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.

Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.

For poblano pepper, the FAO EcoCrop database gives a lowest growing temperature of 8°C and a shortest growing cycle of 60 days at its best temperature, about 930 growing degree days to a first harvest.

Where you've told us where your garden is, we use this and the weather there to predict when your poblano pepper will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.

Growing poblano peppers

  1. Sow seeds indoors somewhere warm 10 weeks before planting out
  2. Pot on the seedlings 6 weeks before planting out
  3. Harden off the seedlings 1 week before planting out
  4. Set or refill beer traps for slugs and snails at planting out every week
  5. Stake the plants 2 weeks after planting out
  6. Water regularly at planting out every week
  7. Check for aphids 2 weeks after planting out every 2 weeks
  8. Feed with tomato fertiliser 6 weeks after planting out every 2 weeks
  9. Pick chillies regularly at first harvest every week
  10. Bring pots in before the first frost 3 months after first harvest

How members grow poblano peppers

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Ecological requirements

Data from the FAO EcoCrop database for Capsicum annuum L.

Family / Taxonomy Magnoliopsida
Asteridae
Solanales
Solanaceae
Life form herb
Life span annual
Habit erect
Optimal soil depth medium (50-150 cm)
Optimal soil texture medium, organic
Optimal soil fertility moderate
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod short day (<12 hours), neutral day (12-14 hours)

Learn more about poblano peppers

Resources outside Growstuff.