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When to Plant Borage in Valencia County, NM

Valencia County, New Mexico Zone 7b May

What to do in May

We've pulled the most time-sensitive tasks for Valencia County, New Mexico this May and put them front and centre. Tackle them in order.

Avg. last frost May 6
Avg. first frost October 8
Soil temp (4") 58°F
Watering Critical
Pest pressure Moderate
Daylight 13.8 hrs
To set up a strong June, finish these tasks
  • Starting indoors: borage
  • First harvests: borage

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Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.

Valencia County, New Mexico is in USDA Zone 7b. The average last spring frost is May 6 and the first fall frost is October 8, giving you a growing season of approximately 155 days.

At an elevation of 4,052 feet, Valencia County receives approximately 11 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Borage during the growing season. Sandy soil warms quickly in spring — great for early planting — but Borage will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Borage successfully. Mulch heavily to conserve soil moisture.

Valencia County, NM (Zone 7b) Moderate season
155 days
Last Spring Frost May 6
155 growing days
First Fall Frost October 8

Valencia County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.8-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Start indoors: Mar 23 Transplant: Apr 20 🍅 Harvest: Jun 15 – Aug 3
Recommended (50%) ✓ Fits season (57 days to spare)
Start indoors: Apr 1 Transplant: Apr 29 🍅 Harvest: Jun 24 – Aug 12
Safe Start (90%) ✓ Fits season (56 days to spare)
Start indoors: Apr 25 Transplant: May 23 🍅 Harvest: Jul 18 – Sep 5

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 Valencia County

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

Soil pH

Your soil pH (6.8–8.7) is more alkaline than Borage prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Borage.

Organic Matter

Organic matter is low (0.8%). Add 2-3 inches of compost before planting Borage.

How to Plant Borage

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

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

Succession Planting Borage

3
successive plantings in your 155-day season

Sow every 5.7 weeks. Last sowing by Aug 09 to harvest before frost.

For a dedicated fall crop, sow by Jul 30.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.3″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 583 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Borage

Borage needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Borage Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 0.7" 0" ❄️ Dormant
Apr 0.4" 0" ❄️ Dormant
May 2.2" 0.3" 1.9" 🚿 Regular watering
Jun 2.2" 0.4" 1.8" 🚿 Regular watering
Jul 2.2" 2" 0.2" 💧 Light watering
Aug 2.2" 2" 0.2" 💧 Light watering
Sep 2.2" 1.6" 0.6" 💧 Light watering
Oct 2.2" 0.9" 1.3" 🚿 Regular watering
Nov 0.6" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Valencia County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Borage 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" — every day above 50°F 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.

Borage needs ~1,128 GDD — county provides 3,177 GDD Excellent fit

Borage Planting Timeline — Valencia County, NM

Borage Planting Calendar

Activity When Date Range
Start Indoors April 1 Apr 1 – Apr 15
Transplant Outdoors April 29 Apr 29 – May 13
Direct Sow April 22 Apr 22 – May 13
Harvest June 24 Jun 24 – Aug 12
Fall Sowing July 30 Jul 30 – Aug 13

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · 1-2 times/week

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7b

📆 Growing Season

155 days in Valencia County

Growing Tips for Borage in Valencia County

Direct sow Borage outdoors after May 06 in Valencia County when soil has warmed and frost danger has passed.

Sandy soil in Valencia County dries quickly — mulch Borage with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

General growing tips

Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Borage in Valencia County, NM?

Valencia County is in Zone 7b with an average last frost of May 6. Plan your Borage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Valencia County, NM?

Valencia County, New Mexico is in USDA Hardiness Zone 7b. The average last spring frost is May 6 and first fall frost is October 8.

🌱

Your Valencia County Garden Planner — Free

A 24-page printable planner built for Valencia County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Valencia County, NM. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.