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Last edited on 28 Oct 2026. View history

jalapeno pepper Jalapeno Pepper

Capsicum annuum WD
Also known as Jalapeno (EN) jalapeño pepper (EN)

A variety of chili pepper

How to sow jalapeno pepper: Direct seed indoors, harden seedlings off before transplanting outside.

Sun requirement for jalapeno pepper: Plant in Full Sun

Small hot pepper, about 2.5 x 7.5cm, medium spiciness. Can be harvested green (when the fruit is younger and milder) or left on the plant longer until it turns red and becomes hotter and sweeter.

17
plantings
2
harvests
2
seed packets
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Growing jalapeno peppers

Annual

living and reproducing in a single year or less

Median lifespan

15 weeks

First harvest expected

10 weeks after planting

Height

40cm

Spread

45cm

Row Spacing

45cm

Grown for

fruit harvested 2 times

How members grow jalapeno peppers

Sunniness

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Harvested for

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Photos

Jalapeno pepper plantings

P4306694
P4306694
by MidnightReverie

Video

Where jalapeno peppers grow

Only plantings by members who have set their locations are shown.

What people are saying about jalapeno peppers

Smallest viable containers for tomatoes, peppers

by Skud,

We have an over-abundance of 20cm/8" and 25cm/10" pots. I'd normally grow peppers (mostly small ones like jalapeño pepper, not huge bell pepper) in 10" pots and tomato in 12" pots. I'm wondering whether maybe I can get away with 8" pots for the peppers, mov…

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Ecological requirements

Data from the FAO EcoCrop database for Capsicum annuum L.

Family / Taxonomy Magnoliopsida
Asteridae
Solanales
Solanaceae
Optimal temperature 17 - 30 °C
Absolute temperature 8 - 35 °C
Optimal rainfall 600 - 1250 mm/year
Absolute rainfall 500 - 1700 mm/year
Optimal soil pH 5.5 - 6.8
Absolute soil pH 4.5 - 7.0
Crop cycle 60 - 180 days
Max altitude 3000 m
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)
Optimal light very bright

Learn more about jalapeno peppers

Resources outside Growstuff.