Zone 10 · Peppers Growing Guide

When to Plant Jalapeño
in Zone 10

The most popular hot pepper for home gardens. Prolific producer, heat-tolerant, and easier than bell peppers. Harvest green for maximum heat or red for sweetness.

Plant outdoors
Year-round
Start indoors
Direct sow
Last Frost
~Jan 15
Days to harvest
70–85 days
Difficulty
Easy
Ready to harvest — Zone 10
Harvest window: Year-round

Planting Calendar

In Zone 10, Jalapeño should be planted outdoors Year-round, after the average last frost date of approximately Jan 15.

True perennial. Plants produce year-round with brief rest in hottest summer weeks.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Moderate
Spacing
14–18 inches
Soil
Well-draining, fertile loam
Days to maturity
70–85 days
Soil pH
6.0–6.8
plant tip · Zone 10

True perennial. Plants produce year-round with brief rest in hottest summer weeks.

Feeding Schedule

How often
every 2 weeks
Feed type
tomato feed (high potassium)
Key timing
start when first flowers appear

Consistent feeding produces more pods. Calcium helps prevent blossom end rot.

Companion Planting for Jalapeño

What you plant next to jalapeño makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Basil
  • Carrots
  • Tomatoes
  • Marigolds
Keep away from
  • Fennel
  • Brassicas

These guides get better when growers like you contribute. If something’s wrong or you’ve learned something worth sharing, we’d love to hear it.

What needs correcting?

What should it say?

Your zone (optional)

Thanks — we'll review this and update the guide if needed.

Your growing tip for Jalapeño

Your name (optional)

Your zone (optional)

Tips are reviewed before publishing. Accepted tips earn you a Founding Grower badge when the plant app launches.

Thanks for contributing! We'll review your tip and be in touch before launch.

Common questions

In Zone 10, direct sow jalapeño outdoors Year-round after your last frost date of approximately Jan 15. True perennial. Plants produce year-round with brief rest in hottest summer weeks.
Zone 10 has an average last spring frost of approximately Jan 15 and a first fall frost around Dec 31. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for jalapeño include Basil, Carrots, Tomatoes, Marigolds. Avoid planting near Fennel, Brassicas, which can compete for nutrients or attract pests.
Jalapeño typically takes 70–85 days from transplant or direct sow to harvest in Zone 10. Expected harvest window: Year-round.

Free app · iOS February 2028

Track your Jalapeño in plant

Get a live traffic light for every crop in your garden — zone-aware planting calendar, real-time weather alerts, and a community of growers near you.

Be first to back on Kickstarter and lock in the founding price.

Jalapeño in other zones
Crop Guides