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When to Plant Broccoli Rabe in Lea County, NM

Broccoli rabe (rapini) is a brassica grown for its slightly bitter, nutty-flavored florets, leaves, and stems. It is a staple in Italian cooking.

Lea County, New Mexico is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 7, giving you a growing season of approximately 219 days.

At an elevation of 4,857 feet, Lea County receives approximately 17.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93ยฐF, providing good warmth for Broccoli Rabe during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Broccoli Rabe will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Broccoli Rabe successfully. Mulch heavily to conserve soil moisture.

Lea County, NM (Zone 7b) Long season
219 days
Last Spring Frost April 2
219 growing days
First Fall Frost November 7

Lea County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (140 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: May 5 – Jun 9
Recommended (50%) ✓ Fits season (142 days to spare)
Start indoors: Feb 26 Transplant: Apr 2 🍅 Harvest: May 14 – Jun 18
Safe Start (90%) ✓ Fits season (135 days to spare)
Start indoors: Mar 17 Transplant: Apr 21 🍅 Harvest: Jun 2 – Jul 7

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 Lea County

How your county's soil matches Broccoli Rabe's growing requirements.

Soil pH

Your soil pH (7.3โ€“8.9) is more alkaline than Broccoli Rabe prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Broccoli Rabe.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Broccoli Rabe.

How to Plant Broccoli Rabe

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Broccoli Rabe

6
successive plantings in your 219-day season

Sow every 4.6 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Aug 29.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.3″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 1,665 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Broccoli Rabe

Broccoli Rabe needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Broccoli Rabe Needs Rainfall You Supplement Action
Jan โ€” 1.3" 0" โ„๏ธ Dormant
Feb โ€” 0.9" 0" โ„๏ธ Dormant
Mar โ€” 0.8" 0" โ„๏ธ Dormant
Apr 3.5" 0.6" 2.9" ๐Ÿšฟ Regular watering
May 3.5" 0.3" 3.2" ๐Ÿšฟ Regular watering
Jun 3.5" 0.5" 3" ๐Ÿšฟ Regular watering
Jul 3.5" 2.9" 0.6" ๐Ÿ’ง Light watering
Aug 3.5" 3.7" 0" โœ… Rainfall sufficient
Sep 3.5" 2.4" 1.1" ๐Ÿ’ง Light watering
Oct 3.5" 1.6" 1.9" ๐Ÿšฟ Regular watering
Nov 3.5" 1.1" 2.4" ๐Ÿšฟ Regular watering
Dec โ€” 1" 0" โ„๏ธ Dormant

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

Broccoli Rabe 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.

Broccoli Rabe needs ~988 GDD — county provides 4,325 GDD Excellent fit

Broccoli Rabe Planting Timeline โ€” Lea County, NM

Broccoli Rabe Planting Calendar

Activity When Date Range
Start Indoors February 26 Feb 26 โ€“ Mar 12
Transplant Outdoors April 2 Apr 2 โ€“ Apr 16
Direct Sow March 19 Mar 19 โ€“ Apr 9
Harvest May 14 May 14 โ€“ Jun 18
Fall Sowing August 29 Aug 29 โ€“ Sep 12

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

219 days in Lea County

Growing Tips for Broccoli Rabe in Lea County

Direct sow Broccoli Rabe outdoors after April 02 in Lea County when soil has warmed and frost danger has passed.

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

Your generous 219.0-day season in Lea County allows multiple plantings of Broccoli Rabe. Sow every 20.0 days for continuous harvest.

Common pests for Broccoli Rabe in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Harvest when small yellow flower buds first appear but before they open. Cut the main shoot first to encourage side shoots.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Broccoli Rabe in Lea County, NM?

Lea County is in Zone 7b with an average last frost of April 2. Plan your Broccoli Rabe planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lea County, NM?

Lea County, New Mexico is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 7.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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