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When to Plant Eggplant in Catron County, NM

Eggplant is a heat-loving solanaceous crop that produces glossy fruits in purple, white, or striped varieties. It requires long, warm growing seasons for best production.

Catron County, New Mexico is in USDA Zone 5b. The average last spring frost is June 3 and the first fall frost is September 22, giving you a growing season of approximately 111 days.

At an elevation of 8,232 feet, Catron County receives approximately 10.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Eggplant to ensure they mature before fall. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Eggplant will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Eggplant successfully. Mulch heavily to conserve soil moisture.

Catron County, NM (Zone 5b) Short season
111 days
Last Spring Frost June 3
111 growing days
First Fall Frost September 22

Catron County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Mar 20 Transplant: Jun 12 🍅 Harvest: Aug 21 – Oct 23
Recommended (50%) ✗ May not fit
Start indoors: Mar 25 Transplant: Jun 17 🍅 Harvest: Aug 26 – Oct 28
Safe Start (90%) ✗ May not fit
Start indoors: Apr 11 Transplant: Jul 4 🍅 Harvest: Sep 12 – Nov 14

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 Catron County

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

Soil pH

Your soil pH (7.3โ€“8.7) is more alkaline than Eggplant prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Eggplant.

Organic Matter

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

How to Plant Eggplant

1"
Planting Depth
30"
Between Plants
42"
Between Rows

How Much Eggplant to Grow

4-6 lbs
Average yield per plant
2
Plants per person
17.5 sq ft
Space per person

For a family of 4, plant approximately 8 eggplant plants in about 70 sq ft. In Catron County's 111-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

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 1,229 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Eggplant

Eggplant 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 Eggplant Needs Rainfall You Supplement Action
Jan โ€” 0.8" 0" โ„๏ธ Dormant
Feb โ€” 0.6" 0" โ„๏ธ Dormant
Mar โ€” 0.5" 0" โ„๏ธ Dormant
Apr โ€” 0.3" 0" โ„๏ธ Dormant
May โ€” 0.2" 0" โ„๏ธ Dormant
Jun 4.8" 0.3" 4.5" ๐Ÿšฟ Regular watering
Jul 4.8" 1.8" 3" ๐Ÿšฟ Regular watering
Aug 4.8" 2.2" 2.6" ๐Ÿšฟ Regular watering
Sep 4.8" 1.4" 3.4" ๐Ÿšฟ Regular watering
Oct โ€” 1" 0" โ„๏ธ Dormant
Nov โ€” 0.6" 0" โ„๏ธ Dormant
Dec โ€” 0.8" 0" โ„๏ธ Dormant

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

Eggplant 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.

Eggplant needs ~919 GDD — county provides 1,359 GDD Excellent fit

Eggplant Planting Timeline โ€” Catron County, NM

Eggplant Planting Calendar

Activity When Date Range
Start Indoors March 25 Mar 25 โ€“ Apr 8
Transplant Outdoors June 17 Jun 17 โ€“ Jul 1
Direct Sow June 10 Jun 10 โ€“ Jul 1
Harvest August 26 Aug 26 โ€“ Oct 28

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

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

65โ€“85 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 5b

๐Ÿ“† Growing Season

111 days in Catron County

Growing Tips for Eggplant in Catron County

Direct sow Eggplant outdoors after June 03 in Catron County when soil has warmed and frost danger has passed.

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

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

Catron County receives only 10" of rain annually. Eggplant 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 only after nighttime temperatures stay above 55F. Mulch to retain moisture and warmth around roots.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Eggplant in Catron County, NM?

Catron County is in Zone 5b with an average last frost of June 3. Plan your Eggplant planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Catron County, NM?

Catron County, New Mexico is in USDA Hardiness Zone 5b. The average last spring frost is June 3 and first fall frost is September 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Catron County gardeners in Zone 5b 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 Catron County, NM. Local conditions may vary. Last updated: April 2026.