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Grant County, NM — Planting Guide

Grant County, New Mexico Zone 7b July

July in Grant County, New Mexico — your action list

Your Grant County, New Mexico garden is entering a new phase. Here's what's on the schedule for July and why each task matters now.

Avg. last frost April 27
Avg. first frost October 22
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 14 hrs
  1. Start begonias, geraniums, and hostas indoors

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

  2. Bring in the basil, carrots, and cucumber

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

August prep starts now
  • First harvests: basil, cucumber, and green beans
  • Fall sowing: carrots, kale, and lettuce

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Grant County is in USDA Zone 7b. The average last spring frost is April 27 and the first fall frost is October 22, giving you a growing season of approximately 178 days.

At an elevation of 3,721 ft, Grant County receives approximately 15.8 in of rainfall annually. Summer highs average 92°F with winter lows around 28°F. The predominant soil type is Sandy Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 43 days year to year — ranging from April 8 in warm years to May 22 in cold years. The growing season is trending longer by about 5.38 days per decade. Grant County scores 27/100 (Challenging) on the Microclimate Index.

🌡️ Zone

7b (5°F to 10°F min)

❄️ Last Frost

April 27

🍂 First Frost

October 22

📅 Growing Season

178 days

⛰️ Elevation

3,721 ft

🌧️ Annual Rainfall

15.8 in

Grant County, NM Moderate season
178 days
Last Spring Frost April 27
178 growing days
First Fall Frost October 22

Monthly Watering Calendar for Grant County

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

For new gardeners: Most vegetables want about 1 inch of water per week. Grant County gets 16" a year — months that hit that 1"/week need zero supplemental watering; months that fall short, the table tells you how much to add. Saves you from drowning roots and from drought-stressing plants into bolting.

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 1" Feb 0.9" +3.5" Mar 0.8" +3.8" Apr 0.5" +4" May 0.3" +3.7" Jun 0.6" +1.5" Jul 2.8" +1.5" Aug 2.8" +1.9" Sep 2.4" +2.7" Oct 1.6" Nov 0.9" Dec 1.1"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1 in 2 days None
Feb 0.9 in 2 days None
Mar 0.8 in 1 days 3.5 in Critical
Apr 0.5 in 0 days 3.8 in Critical
May 0.3 in 1 days 4 in Critical
Jun 0.6 in 2 days 3.7 in Critical
Jul 2.8 in 7 days 1.5 in Moderate
Aug 2.8 in 7 days 1.5 in Moderate
Sep 2.4 in 5 days 1.9 in High
Oct 1.6 in 2 days 2.7 in High
Nov 0.9 in 2 days None
Dec 1.1 in 2 days None

Annual total: 15.7 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.

Grant County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.9-8.2

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Apr 27 → Oct 22 178 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 22 Protect by: Nov 7

Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.

How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.

Planting Strategy Last Spring Frost First Fall Frost Frost-Free Days
Conservative (safest) May 22 Nov 7 169 days
Cautious May 6 Oct 28 175 days
Average year Apr 27 Oct 22 178 days
Optimistic Apr 17 Oct 15 181 days
Aggressive (risky) Apr 8 Oct 6 181 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±43 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

🌱
Is the growing season changing?

Yes — growing seasons are getting longer here (about 5.4 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

27 Challenging
Frost Timing Risk
10.0/10
Drought Risk
9.5/10
Soil Difficulty
3.0/10
Altitude Challenge
5.4/10
Climate Shift
10.0/10
Rainfall Challenge
5.7/10

Grant County has challenging growing conditions. Season extension and careful variety selection are essential.

Zone 7b Frost Countdown
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Loading...
Last Frost: Apr 27 First Frost: Oct 22

Local Gardening Help in Grant County

Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Grant County's climate and soil.

County Extension Office

Grant County New Mexico State University Extension Extension Office

Phone: 575-646-3015

Visit Extension Office Website →

Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.

Master Gardener Program

Free gardening help from trained volunteers

Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.

Find Master Gardeners in NM →

Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.

Soil Testing

Available through your extension office

Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.

Request a Soil Test →

Services Available in Grant County

Soil testing Desert gardening Water-wise landscaping
Finding local nurseries & garden centers in Grant County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Grant County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.

How to Find Them

Search for "nurseries near Grant County NM" or "garden center Grant County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.

Community gardens & gardening groups

Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Grant County NM" or check your extension office and local parks department. Facebook groups like "Grant County Gardeners" or "New Mexico Gardening" are also excellent for local advice and plant swaps.

What to Plant After Your Harvest

After your first crops finish, use the remaining frost-free days to grow a second round.

Show 6 more succession options
After Cabbage (harvest ends Aug 24) 59 days until frost
After Snap Peas (harvest ends Aug 31) 52 days until frost
After Beets (harvest ends Jul 20) 94 days until frost
After Onion (harvest ends Sep 14) 38 days until frost
After Sweet Corn (harvest ends Aug 10) 73 days until frost
After Eggplant (harvest ends Sep 21) 31 days until frost

Sunlight & Day Length in Grant County

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

For new gardeners: You can't change the sun. Picking the right day-length-matched varieties for Grant County matters more than any other "fix" you make — and the seed packet tells you (look for "long-day," "short-day," "day-neutral").

Longest Day

14.1 hours

Summer solstice daylight

Shortest Day

9.9 hours

Winter solstice daylight

Peak Sun Hours

11.8 hr/day peak (summer)

Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.

14hr 12hr 6h 9h 11h 14h 16h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

Onion tip: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 10.1 hr 7.1 hr Short day
February 10.8 hr 7.8 hr Short day
March 11.8 hr 9.3 hr Short day
April 12.8 hr 10.3 hr Neutral
May 13.7 hr 11.3 hr Neutral
June 14.1 hr 11.8 hr Long day
July 14 hr 10.2 hr Long day
August 13.2 hr 9.3 hr Neutral
September 12.2 hr 9.2 hr Neutral
October 11.2 hr 9 hr Short day
November 10.3 hr 7.9 hr Short day
December 9.9 hr 7.3 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting in Grant County

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

Why this matters: Compost piles need 130-160°F internal temp to actively break down. Below 50°F ambient, microbial activity slows dramatically. Grant County's soil temperature curve also tells you when your compost is working and when it's napping.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Jun through Oct.

Best Month to Compost

Jun

Microbial activity peaks when soil is warm.

Active Composting

6 months

Solid season. Piles go dormant in winter.

60°F 70°F 10° 30° 50° 70° 90° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 29°F 36°F ❄️ Dormant ~36 weeks
Feb 30°F 35°F ❄️ Dormant ~36 weeks
Mar 36°F 38°F ❄️ Dormant ~36 weeks
Apr 47°F 47°F 🐢 Slow ~24 weeks
May 58°F 57°F ♻️ Active ~14 weeks
Jun 70°F 65°F 🔥 Peak ~8 weeks
Jul 77°F 72°F 🔥 Peak ~8 weeks
Aug 76°F 73°F 🔥 Peak ~8 weeks
Sep 73°F 72°F 🔥 Peak ~8 weeks
Oct 62°F 62°F ♻️ Active ~14 weeks
Nov 46°F 53°F 🐢 Slow ~24 weeks
Dec 36°F 41°F ❄️ Dormant ~36 weeks

Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Grant County

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

The practical takeaway: Pest pressure scales with warmth and humidity. Hot humid Grant County sees year-round bugs and fungal disease; cold dry regions see almost none. A high pest score means crop rotation, resistant varieties, and a weekly pest-watch routine from day one.

Insect Pest Pressure

6 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

1.7 / 10

Low disease risk — dry conditions reduce fungal problems.

Seasonal Risk

Spring Moderate
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
Japanese beetles Moderate Jun, Jul, Aug
Squash vine borers Moderate May, Jun, Jul
Stink bugs Moderate May, Jun, Jul, Aug, Sep
Whiteflies Low Jun, Jul, Aug, Sep
Spider mites Moderate Jul, Aug
Organic pest management tips
  • Maintain healthy soil with regular compost additions to build natural pest resistance
  • Practice crop rotation annually to break pest cycles
  • Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow

Cover Crops for Grant County

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.

Why this matters: The "chop and drop" approach to cover crops: cut them down right before flowering, let them lay on the surface as mulch, plant your vegetables through the mulch. Less work, healthier soil.

Spring Cover Crops (4 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 2 Aug 20 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) May 4 Aug 13 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass May 9 Aug 20 Massive biomass, breaks compaction, suppresses nematodes
White clover Mar 27 Aug 13 ✓ Yes Living mulch, fixes nitrogen, permanent ground cover
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
Crop Plant By Terminate N-Fixing Soil Benefit
Sunflowers May 19 Sep 24 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Austrian winter peas Aug 18 Apr 13 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Aug 19 Apr 13 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Aug 25 Apr 13 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Aug 10 Apr 6 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 20 Apr 13 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 19 Apr 6 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 20 Apr 13 Erosion control, weed suppression, good biomass

Wind & Microclimate in Grant County

For new gardeners: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Grant County's 9.4 mph average means most days are gentle on plants, but consider how a 20+ mph spring gust would affect a flat of seedlings hardened off too quickly.

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 12 mph   Summer: 9 mph

Fall: 10 mph   Winter: 12 mph

Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

4.7/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Low

Relatively flat terrain (301 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in Grant County

How much water you can collect, when to collect it, and what size system you need for your garden.

The practical takeaway: Rainwater is unchlorinated, unfluoridated, and at ambient temperature — plants actually prefer it. Grant County's 16" annual rainfall means even a small 50-gallon barrel catches enough for a few weeks of garden watering between storms.

Annual Collection

7,824 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

8 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 2,000 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

Jul, Aug, Sep, Oct

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Feb, Mar, Apr, May, Jun, Nov

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 15.7 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 7,824 gallons annually
  • Rainwater harvesting is fully legal in your state
  • In your dry climate, every drop counts — consider a larger cistern system
  • Position collection tanks in shade to reduce evaporation and algae growth

Soil & Growing Conditions in Grant County

Soil Type

Sandy Loam

Soil pH 6.9–8.2 · Excessively Drained drainage

Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.

Watering Needs

Drought stress: 9.5/10

Very high drought stress. Irrigation is critical for garden success. Focus on water-efficient techniques and drought-adapted crops.

Season Tips

178-day frost-free season

Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.

Your Free Printable Garden Planner

Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.

Instant PDF download. No spam, unsubscribe any time.

Recommended for Your Garden

🫧
Vermiculite $12-22

Retain moisture and nutrients in sandy soils with expanded vermiculite.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

📏
Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

🥬 Vegetables to Grow in Grant County

112 vegetables that grow well in Zone 7b with planting dates for Grant County.

Show all 112 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Mar 30 May 4 May 11 Aug 3 – Sep 7 80–100
Amaranth Mar 9 May 4 May 11 Aug 10 – Sep 28 90–120
Artichoke May 11 Sep 14 – Nov 23 120–180
Arugula Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Aug 3 30–50
Asparagus May 11 730–1095
Beets Apr 13 Aug 13 Jun 8 – Jul 6 50–70
Belgian Endive Mar 23 Apr 13 Apr 27 Aug 13 Aug 17 – Oct 12 110–150
Bitter Melon Mar 9 May 4 May 11 Jul 13 – Aug 24 60–90
Black Beans May 4 Aug 3 – Sep 21 90–120
Bok Choy Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 13 40–60
Broccoli Mar 23 Apr 13 Apr 27 Aug 13 Jun 29 – Aug 10 60–90
Broccoli Rabe Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 13 40–60
Brussels Sprouts Mar 23 Apr 13 Apr 27 Aug 13 Jul 27 – Sep 21 90–130
Butternut Squash Mar 30 May 4 May 11 Aug 10 – Sep 14 85–110
Cabbage Mar 23 Apr 13 Apr 27 Aug 13 Jun 29 – Aug 24 60–100
Calabash Mar 9 May 4 May 11 Aug 3 – Sep 28 80–120
Cardoon May 11 Sep 14 – Oct 26 120–150
Carrots Apr 13 Aug 13 Jun 15 – Jul 20 60–80
Cauliflower Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 24 55–100
Celeriac Mar 23 Apr 13 Apr 27 Aug 13 Aug 10 – Sep 14 100–120
Celery Mar 23 Apr 13 Apr 27 Aug 13 Jul 20 – Sep 14 80–120
Celtuce Mar 23 Apr 13 Apr 27 Aug 13 Jun 29 – Aug 10 60–90
Chard Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 10 50–60
Chayote Mar 9 May 4 May 11 Sep 14 – Nov 23 120–180
Chickpeas Mar 23 Apr 13 Apr 27 Aug 13 Jul 20 – Aug 31 80–110
Chicory Mar 23 Apr 13 Apr 27 Aug 13 Jun 29 – Aug 10 60–85
Chinese Cabbage Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Jul 20 50–70
Christmas Lima Beans Mar 9 May 4 May 11 Aug 3 – Sep 7 80–100
Collard Greens Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 24 55–75
Corn May 4 Jul 6 – Aug 31 60–100
Cowpeas May 4 Jul 6 – Aug 17 60–90
Cress Mar 23 Apr 13 Apr 27 Aug 13 May 11 – Jun 1 14–21
Crookneck Squash Mar 30 May 4 May 11 Jun 29 – Jul 27 45–60
Crosne Apr 13 Aug 13 Sep 14 – Nov 16 150–200
Cucumber Mar 30 May 4 May 11 Jul 6 – Aug 31 50–70
Daikon Apr 13 Aug 13 Jun 8 – Jul 6 50–70
Delicata Squash Mar 30 May 4 May 11 Aug 3 – Sep 7 80–100
Edamame May 4 Jul 20 – Aug 31 75–100
Eggplant Feb 23 May 4 May 11 Jul 20 – Sep 21 65–85
Endive Mar 23 Apr 13 Apr 27 Aug 13 Jun 15 – Jul 20 45–65
Escarole Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Jul 20 50–70
Fava Beans Mar 23 Apr 13 Apr 27 Aug 13 Jul 13 – Aug 24 75–100
Fennel Mar 9 May 4 May 11 Jul 13 – Aug 24 60–90
Garlic Sep 10 Dec 10 – Apr 22 90–240
Green Beans May 4 Jun 29 – Aug 24 50–65
Horseradish May 11 Sep 14 – Nov 23 120–180
Hot Peppers Feb 23 May 4 May 11 Jul 20 – Oct 26 70–120
Hubbard Squash Mar 30 May 4 May 11 Aug 24 – Sep 28 100–120
Jicama Mar 9 May 4 May 11 Sep 14 – Nov 23 120–180
Kabocha Mar 30 May 4 May 11 Aug 10 – Sep 7 85–100
Kai Lan Mar 23 Apr 13 Apr 27 Aug 13 Jun 15 – Jul 13 45–60
Kale Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 17 50–70
Kidney Beans May 4 Aug 3 – Sep 7 85–110
Kohlrabi Mar 23 Apr 13 Apr 27 Aug 13 Jun 15 – Jul 20 45–65
Komatsuna Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Jul 6 35–50
Leeks Mar 23 Apr 13 Apr 27 Aug 13 Jul 27 – Oct 12 90–150
Lentils Mar 23 Apr 13 Apr 27 Aug 13 Jul 20 – Aug 31 80–110
Lettuce Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Aug 10 30–60
Lima Beans May 4 Jul 6 – Aug 17 60–90
Loofah Mar 9 May 4 May 11 Aug 24 – Oct 26 100–150
Luffa Mar 9 May 4 May 11 Aug 10 – Oct 26 90–150
Mache Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 13 40–60
Malabar Spinach Mar 9 May 4 May 11 Jul 6 – Aug 3 55–70
Melon Mar 30 May 4 May 11 Jul 20 – Sep 7 70–100
Microgreens Mar 23 Apr 13 Apr 27 Aug 13 May 4 – Jun 1 7–21
Mitsuba Mar 23 Apr 13 Apr 20 Aug 13 Jun 15 – Aug 10 50–70
Mizuna Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Jun 29 30–45
Mustard Greens Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Aug 3 30–50
Napa Cabbage Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Jul 27 55–75
New Zealand Spinach Mar 9 May 4 May 11 Jul 6 – Aug 3 55–70
Okra Mar 9 May 4 May 11 Jul 6 – Aug 31 50–65
Onion Mar 23 Apr 13 Apr 27 Aug 13 Jul 27 – Sep 14 90–120
Pac Choi Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 6 40–55
Parsnip Apr 13 Aug 13 Jul 27 – Sep 7 100–130
Patty Pan Squash Mar 30 May 4 May 11 Jun 29 – Jul 27 45–60
Peas Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 17 55–70
Peppers Feb 23 May 4 May 11 Jul 13 – Sep 21 60–90
Pole Beans Mar 9 May 4 May 11 Jul 6 – Aug 31 55–70
Potatoes Mar 9 May 4 May 11 Jul 20 – Sep 28 70–120
Pumpkin Mar 30 May 4 May 11 Aug 10 – Sep 28 85–120
Purslane Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 13 40–60
Radicchio Mar 23 Apr 13 Apr 27 Aug 13 Jun 29 – Aug 3 60–80
Radish Apr 13 Aug 13 May 11 – Jun 1 22–35
Rhubarb May 18 365–730
Romanesco Mar 23 Apr 13 Apr 27 Aug 13 Jul 13 – Aug 24 75–100
Rutabaga Apr 13 Aug 13 Jul 6 – Aug 10 80–100
Salsify Apr 13 Aug 13 Jul 27 – Sep 7 100–130
Savoy Cabbage Mar 23 Apr 13 Apr 27 Aug 13 Jul 6 – Aug 31 70–110
Scallions Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Jul 20 50–70
Scarlet Runner Beans Mar 9 May 4 May 11 Jul 13 – Aug 17 60–80
Shallot Mar 23 Apr 13 Apr 27 Aug 13 Jul 27 – Sep 14 90–120
Shiso Mar 9 May 4 May 11 Jul 6 – Aug 31 50–70
Snap Peas Mar 9 May 4 May 11 Jul 6 – Aug 31 55–70
Snow Peas Mar 23 Apr 13 Apr 27 Aug 13 Jun 22 – Aug 17 50–65
Soybeans May 4 Jul 27 – Sep 21 80–120
Spaghetti Squash Mar 30 May 4 May 11 Aug 10 – Sep 7 85–100
Spinach Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Aug 3 35–50
Squash (Summer) Mar 30 May 4 May 11 Jun 29 – Aug 31 45–65
Squash (Winter) Mar 30 May 4 May 11 Aug 3 – Sep 28 80–120
Sunchoke May 11 Aug 31 – Oct 26 110–150
Sweet Corn May 4 Jul 6 – Aug 17 60–90
Sweet Potatoes Mar 9 May 4 May 11 Aug 10 – Sep 28 90–120
Tatsoi Mar 23 Apr 13 Apr 27 Aug 13 Jun 1 – Jul 6 35–50
Tomatillo Mar 9 May 4 May 11 Jul 13 – Sep 21 60–85
Tomatoes Mar 9 May 4 May 11 Jul 13 – Sep 21 60–85
Turnip Apr 13 Aug 13 May 25 – Jun 29 40–60
Watercress Mar 23 Apr 13 Apr 27 Aug 13 Jun 8 – Jul 13 40–60
Watermelon Mar 30 May 4 May 11 Jul 20 – Sep 7 70–100
Wax Beans May 4 Jun 29 – Aug 24 50–65
Winter Melon Mar 9 May 4 May 11 Aug 10 – Sep 28 90–120
Yard Long Beans Mar 9 May 4 May 11 Jul 6 – Aug 17 55–80
Zucchini Mar 30 May 4 May 11 Jun 29 – Aug 24 45–60

🍓 Fruits to Grow in Grant County

31 fruits that grow well in Zone 7b with planting dates for Grant County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries May 18 Aug 17 – Nov 30 90–180
Aronia May 18 730–1095
Blackberries May 18 365–730
Blueberries May 18 730–1095
Boysenberries May 18 365–730
Cantaloupe May 18 Jul 27 – Aug 31 70–90
Che Fruit May 18 1095–1825
Cranberries May 18 730–1095
Currants May 18 730–1095
Elderberries May 18 730–1095
Figs May 18 730–1825
Goji Berries May 18 730–1095
Gooseberries May 18 730–1095
Grapes May 18 730–1095
Ground Cherry May 18 Jul 27 – Sep 21 65–80
Hardy Kiwi May 18 1095–1825
Haskaps May 18 730–1095
Honeydew May 18 Aug 10 – Sep 21 80–110
Jostaberry May 18 730–1095
Kiwi May 18 1095–1825
Lingonberries May 18 730–1095
Loquat May 18 730–1825
Medlar May 18 1095–1825
Mulberries May 18 730–1825
Pawpaw May 18 1095–2555
Persimmon May 18 1095–2555
Pomegranate May 18 730–1095
Quince May 18 1095–1825
Raspberries May 18 365–730
Serviceberries May 18 730–1095
Strawberries May 18 Aug 17 – Dec 28 90–365

🌿 Herbs to Grow in Grant County

36 herbs that grow well in Zone 7b with planting dates for Grant County.

Show all 36 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Mar 23 Apr 13 Apr 20 Aug 13 365–730
Anise Mar 23 Apr 13 Apr 20 Aug 13 Jul 20 – Oct 5 90–120
Basil Mar 9 May 4 May 11 Jul 6 – Sep 7 50–75
Bee Balm May 4 Aug 3 – Oct 19 90–120
Borage Mar 23 Apr 13 Apr 20 Aug 13 Jun 15 – Aug 3 50–60
Caraway Mar 23 Apr 13 Apr 20 Aug 13 365–450
Catnip May 4 Jul 6 – Sep 7 60–80
Chamomile Mar 23 Apr 13 Apr 20 Aug 13 Jun 22 – Aug 31 60–90
Chervil Mar 23 Apr 13 Apr 20 Aug 13 Jun 1 – Aug 3 40–60
Chives May 4 Jul 6 – Sep 14 60–90
Cilantro Mar 23 Apr 13 Apr 20 Aug 13 Jun 1 – Aug 3 40–60
Comfrey May 4 Jul 6 – Sep 14 60–90
Cumin Mar 23 Apr 13 Apr 20 Aug 13 Aug 3 – Oct 5 100–120
Dill Mar 23 Apr 13 Apr 20 Aug 13 Jun 1 – Aug 3 40–60
Epazote Mar 9 May 4 May 11 Jun 29 – Aug 24 45–60
Fennel (herb) Mar 23 Apr 13 Apr 20 Aug 13 Jun 22 – Aug 31 60–90
Feverfew May 4 Aug 3 – Oct 19 90–120
Garlic Chives May 4 Jul 6 – Sep 14 60–90
Horehound May 4 Jul 20 – Sep 14 75–90
Hyssop May 4 Jul 13 – Sep 14 70–90
Lemon Balm May 4 Jul 6 – Aug 24 60–70
Lemon Thyme May 4 Jul 13 – Sep 14 70–90
Lovage May 4 Jul 13 – Sep 14 70–90
Marjoram May 4 Jul 6 – Sep 14 60–90
Mint May 4 Jul 6 – Sep 14 60–90
Oregano May 4 Jul 6 – Sep 14 60–90
Parsley Mar 23 Apr 13 Apr 20 Aug 13 Jun 22 – Aug 24 60–80
Rosemary May 4 Jul 27 – Dec 14 80–180
Rue May 4 Jul 13 – Sep 14 70–90
Sage May 4 Jul 20 – Sep 14 75–90
Savory May 4 Jun 29 – Aug 24 50–70
Sorrel Mar 23 Apr 13 Apr 20 Aug 13 Jun 1 – Aug 3 40–60
Tarragon May 4 Jul 6 – Sep 14 60–90
Thai Basil Mar 9 May 4 May 11 Jul 6 – Sep 7 50–75
Thyme May 4 Jul 13 – Sep 14 70–90
Valerian May 4 Sep 7 – Dec 14 120–180

🌸 Flowers to Grow in Grant County

53 flowers that grow well in Zone 7b with planting dates for Grant County.

Show all 53 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 16 Apr 27 Apr 27 Jun 22 – Oct 26 60–75
Alliums Sep 17 Oct 15 – Nov 5 28–42
Anemones Aug 27 Sep 10 – Oct 8 90–120
Astilbe Feb 23 May 4 Jul 13 – Sep 7 70–100
Bachelor's Button Mar 16 Mar 23 Apr 27 Aug 27 Jun 29 – Oct 5 60–90
Begonias Feb 16 Apr 27 Jul 6 – Nov 9 70–90
Black-eyed Susan Feb 23 Apr 20 May 4 Jul 13 – Nov 23 60–80
Bleeding Hearts Feb 23 May 4 Jun 22 – Jul 27 60–90
Calendula Mar 16 Mar 23 Apr 27 Aug 27 Jun 15 – Oct 12 50–70
California Poppy Mar 30 Aug 27 Jun 8 – Aug 31 60–90
Celosia Mar 30 Apr 27 Apr 27 Jun 29 – Nov 9 60–90
Columbine Mar 2 May 4 May 4 Jun 22 – Jul 27 70–100
Coreopsis Feb 23 Apr 27 May 4 Jul 6 – Nov 23 60–80
Cosmos Mar 30 Apr 20 Apr 20 Jun 29 – Nov 2 60–90
Crocus Sep 17 Aug 13 – Sep 3 10–20
Daffodils Sep 17 Aug 20 – Sep 10 20–40
Dahlias Apr 6 May 4 May 4 Jul 13 – Nov 30 70–120
Daylily Feb 23 May 4 Jul 13 – Nov 23 60–90
Dianthus Mar 2 Mar 23 Mar 30 May 18 – Aug 10 60–80
Echinacea (Purple Coneflower) Feb 23 May 4 May 4 Jul 20 – Nov 23 70–90
Foxglove Mar 2 May 4 May 4 Jun 22 – Jul 27 80–120
Gaillardia (Blanket Flower) Mar 9 Apr 27 Apr 27 Jul 6 – Dec 7 70–100
Geraniums Feb 16 Apr 27 Jul 6 – Nov 9 70–100
Gladiolus Apr 27 Apr 27 Jul 6 – Nov 23 70–100
Hostas Feb 16 May 4 Jul 13 – Nov 16 60–90
Hyacinths Sep 17 Sep 10 – Oct 1 14–28
Hydrangeas Feb 16 Apr 27 Jul 6 – Nov 2 90–150
Impatiens Mar 2 Apr 27 Jul 6 – Nov 9 60–75
Irises Division May 4 Jun 22 – Jul 27 60–100
Larkspur Mar 30 Aug 13 Jun 8 – Aug 31 60–90
Lavender Feb 23 May 4 Jul 13 – Oct 5 90–120
Lilies Division Apr 27 Jul 6 – Oct 26 70–120
Lobelia Feb 23 Mar 30 May 25 – Aug 3 70–80
Lupine Mar 2 May 4 May 4 Jun 22 – Jul 27 75–100
Marigolds Mar 16 Apr 27 Apr 27 Jun 22 – Oct 12 50–70
Nasturtium Mar 30 Apr 27 Apr 27 Jun 22 – Nov 9 55–65
Pansy Feb 16 Apr 20 Aug 13 Jun 15 – Sep 7 70–90
Peonies Division May 4 Jun 29 – Jul 27 90–120
Petunia Mar 2 Apr 27 Jul 6 – Nov 2 70–90
Phlox Feb 23 May 4 May 4 Jul 13 – Oct 5 80–110
Portulaca Mar 30 Apr 27 Apr 27 Jun 15 – Oct 26 50–70
Ranunculus Aug 27 Sep 17 – Oct 15 90–120
Roses Feb 16 Apr 27 Jul 6 – Nov 16 90–180
Salvia Mar 2 Apr 27 Jul 6 – Nov 9 70–90
Sedum (Stonecrop) Feb 23 May 4 Aug 24 – Nov 16 60–90
Snapdragon Feb 16 Mar 30 Apr 20 Aug 27 Jun 29 – Oct 5 70–100
Sunflower Apr 6 Apr 27 Apr 27 Jul 20 – Nov 9 70–100
Sweet Alyssum Mar 16 Mar 30 Apr 27 Sep 10 Jun 8 – Sep 14 45–60
Sweet Pea Aug 27 Nov 5 – Jan 28 65–85
Tulips Sep 17 Sep 3 – Sep 24 15–30
Vinca (Annual) Feb 16 Apr 27 Jul 6 – Nov 9 70–90
Yarrow Feb 23 Apr 20 May 4 Jul 6 – Nov 23 60–90
Zinnia Mar 30 Apr 27 Apr 27 Jul 6 – Nov 9 60–70

Monthly Planting Guide for Grant County

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Grant County.

Frequently Asked Questions

What planting zone is Grant County, NM?

Grant County is in USDA Hardiness Zone 7b. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.

When is the last frost in Grant County, NM?

Based on 31 years of NOAA weather station data, the median last spring frost in Grant County falls around April 27. In 8 out of 10 years, last frost lands between April 8 and May 22 — a 43-day window of variability. Use May 22 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Grant County, NM?

The median first fall frost in Grant County arrives around October 22. In cold years it can arrive as early as October 6; in mild years as late as November 7. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Grant County?

Grant County has a frost-free growing season of approximately 178 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending longer by about 5.38 days per decade.

What is the soil like in Grant County for gardening?

Grant County has predominantly Sandy Loam soil with a pH range of 6.9–8.2 and Excessively Drained drainage. The native soil conditions make raised beds a particularly good investment here — they let you control drainage and fertility independent of the ground soil.

What is grown commercially in Grant County?

Grant County has commercial agriculture that includes Cattle, Hay, Cotton, Dairy. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is Grant County a good location for home gardening?

Grant County scores 27/100 (Challenging) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Gardening here benefits from close attention to frost timing and season extension due to the challenging microclimate factors.

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A 22-page printable planner built for Grant 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 GHCN-D daily station data (1994–2024) from 3 weather stations in or near Grant County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: July 2026.

Sources & credits

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