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When to Plant Peppers in Bernalillo County, NM

Sweet peppers are warm-season crops producing fruits in a rainbow of colors. They turn from green to red, yellow, or orange as they ripen, increasing in sweetness.

Bernalillo County, New Mexico is in USDA Zone 7a. The average last spring frost is April 30 and the first fall frost is October 14, giving you a growing season of approximately 167 days.

At an elevation of 4,326 feet, Bernalillo County receives approximately 16.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Peppers during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Peppers will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Peppers successfully. Mulch heavily to conserve soil moisture.

Bernalillo County, NM (Zone 7a) Moderate season
167 days
Last Spring Frost April 30
167 growing days
First Fall Frost October 14

Bernalillo County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.8-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (23 days to spare)
Start indoors: Feb 12 Transplant: Apr 30 🍅 Harvest: Jul 2 – Sep 10
Recommended (50%) ✓ Fits season (20 days to spare)
Start indoors: Feb 26 Transplant: May 14 🍅 Harvest: Jul 16 – Sep 24
Safe Start (90%) ✓ Fits season (18 days to spare)
Start indoors: Mar 28 Transplant: Jun 13 🍅 Harvest: Aug 15 – Oct 24

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Bernalillo County

How your county's soil matches Peppers's growing requirements.

Soil pH

Your soil pH (6.8โ€“8.2) is more alkaline than Peppers prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Bernalillo County warms quickly in spring but drains fast. Peppers will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Peppers.

Organic Matter

Organic matter is low (0.7%). Add 2-3 inches of compost before planting Peppers.

How to Plant Peppers

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Peppers

3
successive plantings in your 167-day season

Sow every 6.9 weeks. Last sowing by Jul 16 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.4″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 1,819 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Peppers

Peppers needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Peppers Needs Rainfall You Supplement Action
Jan โ€” 1" 0" โ„๏ธ Dormant
Feb โ€” 0.8" 0" โ„๏ธ Dormant
Mar โ€” 0.8" 0" โ„๏ธ Dormant
Apr 4.8" 0.5" 4.3" ๐Ÿšฟ Regular watering
May 4.8" 0.3" 4.5" ๐Ÿšฟ Regular watering
Jun 4.8" 0.6" 4.2" ๐Ÿšฟ Regular watering
Jul 4.8" 3.1" 1.7" ๐Ÿ’ง Light watering
Aug 4.8" 3.2" 1.6" ๐Ÿ’ง Light watering
Sep 4.8" 2.3" 2.5" ๐Ÿšฟ Regular watering
Oct 4.8" 1.4" 3.4" ๐Ÿšฟ Regular watering
Nov โ€” 1" 0" โ„๏ธ Dormant
Dec โ€” 1.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Bernalillo County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Peppers Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Peppers needs ~1,369 GDD — county provides 3,047 GDD Excellent fit

Peppers Planting Timeline โ€” Bernalillo County, NM

Peppers Planting Calendar

Activity When Date Range
Start Indoors February 26 Feb 26 โ€“ Mar 12
Transplant Outdoors May 14 May 14 โ€“ May 28
Direct Sow May 7 May 7 โ€“ May 28
Harvest July 16 Jul 16 โ€“ Sep 24

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors
April โ€”
May Transplant Outdoors Direct Sow
June โ€”
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.1"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

167 days in Bernalillo County

Growing Tips for Peppers in Bernalillo County

Direct sow Peppers outdoors after April 30 in Bernalillo County when soil has warmed and frost danger has passed.

Sandy soil in Bernalillo County dries quickly โ€” mulch Peppers with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Peppers in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

Bernalillo County receives only 16" of rain annually. Peppers needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 8-10 weeks before last frost. Transplant when nighttime temperatures stay above 55F. Avoid high-nitrogen fertilizers which promote leaves over fruit.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Check more plant combinations with our Companion Planting Checker →

๐ŸŒพ Save Your Own Peppers Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Remove seeds from fully ripe (red/orange) fruit.
Storage Store airtight; viable 4 years at 35ยฐF, under 50% humidity.

Isolate 300 ft for purity. Hot and sweet peppers can cross-pollinate.

Frequently Asked Questions

When should I plant Peppers in Bernalillo County, NM?

Bernalillo County is in Zone 7a with an average last frost of April 30. Plan your Peppers planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bernalillo County, NM?

Bernalillo County, New Mexico is in USDA Hardiness Zone 7a. The average last spring frost is April 30 and first fall frost is October 14.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bernalillo County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Bernalillo County, NM. Local conditions may vary. Last updated: April 2026.