About this variety
NuMex Lemon is a jalapeño (Capsicum annuum, family Solanaceae) whose fruit ripens lemon-yellow instead of red and runs hotter than a standard jalapeño, at 25,000–30,000 Scoville heat units. The packet holds 5 seeds.
This jalapeño is credited to the Chile Pepper Institute at New Mexico State University.
Fruit and plant
- Fruit about 6.5 cm long and 2.5 cm across, thick-walled, smooth and glossy
- Ripens from green to bright lemon-yellow
- Compact plants about 60 cm tall, suited to beds or containers
- Used fresh in salsas, pickled or grilled
Sow into soil at 18–35 °C
Start the seed indoors 6–8 weeks before the last frost. Seedlings appear in about 8–9 days when the soil is 25–35 °C; 18–35 °C is the soil range that suits pepper germination, so keep the tray inside it until the first leaves show. Cover the seed with about 6 mm of seed-starting mix.
These figures are typical for the species (emergence was measured with seed about 13 mm deep); they are not a test of this packet.
Planting out
Transplant once the soil is warmer than 20 °C. Space plants 45–60 cm apart with 60–90 cm between rows, in full sun and fertile, well-drained soil at pH 5.5–7.5. Keep the soil moist without waterlogging. Feed with a nitrogen-rich fertiliser early, then switch to a potassium-rich one at flowering.
When to expect fruit
Fruit matures about 65 days after transplanting, counted from the day the plant goes outside.
What you get: 5 seeds per packet. Pepper seed usually stays usable for about 2 years when kept cool, dark and dry, so you can sow part of the packet and keep the rest. That is a general figure for the species; we do not state a germination percentage for this packet.
FAQ
Will it grow in a pot?
Yes. At about 60 cm the plant stays compact enough for a container in full sun.
How does it differ from a common jalapeño?
The fruit turns lemon-yellow rather than red when ripe, and at 25,000–30,000 Scoville heat units it is hotter than traditional jalapeños.




