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Weber County, UT — Planting Guide

Weber County, Utah Zone 7a May

What to do in May

May is a pivotal month for Weber County, Utah gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 26
Avg. first frost September 21
Soil temp (4") 44°F
Watering High
Pest pressure Low
Daylight 14.3 hrs
  1. Move kale, lettuce, and angelica into the garden

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

  2. Seed carrots, kale, and lettuce outdoors

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

Coming up in June — start thinking about
  • Transplants going out: basil, cucumber, and peppers
  • Direct-sowing: basil, cucumber, and green beans
  • Starting indoors: cucumber, kale, and lettuce
  • First harvests: lettuce, radish, and arugula

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Weber County is in USDA Zone 7a. The average last spring frost is May 26 and the first fall frost is September 21, giving you a growing season of approximately 118 days.

At an elevation of 6,211 ft, Weber County receives approximately 18.4 in of rainfall annually. Summer highs average 86°F with winter lows around 25°F. The predominant soil type is Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 58 days year to year — ranging from April 22 in warm years to June 19 in cold years. The growing season is trending shorter by about 0.55 days per decade. Weber County scores 41/100 (Moderate) on the Microclimate Index.

🌡️ Zone

7a (°F to °F min)

❄️ Last Frost

May 26

🍂 First Frost

September 21

📅 Growing Season

118 days

⛰️ Elevation

6,211 ft

🌧️ Annual Rainfall

18.4 in

Weber County, UT Short season
118 days
Last Spring Frost May 26
118 growing days
First Fall Frost September 21

Monthly Watering Calendar

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

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 1.3" Feb 0.9" +2.8" Mar 1.5" +2.3" Apr 2" +2.2" May 2.1" +2.9" Jun 1.4" +2.8" Jul 1.5" +2.1" Aug 2.2" +2.8" Sep 1.5" +2.8" Oct 1.5" Nov 1.5" 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 1.3 in 6 days None
Feb 0.9 in 5 days None
Mar 1.5 in 9 days 2.8 in High
Apr 2 in 8 days 2.3 in High
May 2.1 in 8 days 2.2 in High
Jun 1.4 in 4 days 2.9 in High
Jul 1.5 in 6 days 2.8 in High
Aug 2.2 in 6 days 2.1 in High
Sep 1.5 in 6 days 2.8 in High
Oct 1.5 in 5 days 2.8 in High
Nov 1.5 in 5 days None
Dec 1.1 in 7 days None

Annual total: 18.5 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.

Weber County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.7

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 May 26 → Sep 21 118 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Safe: Jun 19 Protect by: Oct 21

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) Jun 19 Oct 21 124 days
Cautious Jun 10 Oct 9 121 days
Average year May 26 Sep 21 118 days
Optimistic May 7 Sep 9 125 days
Aggressive (risky) Apr 22 Aug 24 124 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±58 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?

Slightly — seasons are trending a bit shorter (0.6 days/decade). Stay conservative with planting dates.

Gardening Difficulty Score

41 Moderate
Frost Timing Risk
10.0/10
Drought Risk
7.5/10
Soil Difficulty
1.0/10
Altitude Challenge
10.0/10
Climate Shift
2.2/10
Rainfall Challenge
4.6/10

Weber County presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 7a Frost Countdown
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Loading...
Last Frost: May 26 First Frost: Sep 21

Local Gardening Help in Weber 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 Weber County's climate and soil.

County Extension Office

Weber County Utah State University Extension Extension Office

Phone: 435-797-2200

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 UT →

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 Weber County

Soil testing Arid gardening Pest identification
Finding local nurseries & garden centers in Weber County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Weber 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 Weber County UT" or "garden center Weber 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 Weber County UT" or check your extension office and local parks department. Facebook groups like "Weber County Gardeners" or "Utah 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.

After Beets (harvest ends Aug 18) 34 days until frost
After Kohlrabi (harvest ends Aug 18) 34 days until frost
After Scallions (harvest ends Aug 18) 34 days until frost

Sunlight & Day Length

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

Longest Day

15 hours

Summer solstice daylight

Shortest Day

9 hours

Winter solstice daylight

Peak Sun Hours

11.3 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 3h 6h 10h 13h 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: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 9.3 hr 5.2 hr Short day
February 10.4 hr 5.8 hr Short day
March 11.7 hr 6.7 hr Short day
April 13.1 hr 7.4 hr Neutral
May 14.3 hr 8.6 hr Long day
June 15 hr 11.3 hr Long day
July 14.7 hr 10.4 hr Long day
August 13.7 hr 9.6 hr Neutral
September 12.3 hr 8.5 hr Neutral
October 10.9 hr 7.2 hr Short day
November 9.6 hr 5.7 hr Short day
December 9 hr 4.7 hr Short day

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

Soil Temperature & Composting Calendar

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

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Jul through Aug.

Best Month to Compost

Aug

Microbial activity peaks when soil is warm.

Active Composting

4 months

Short season — insulate pile or use indoor vermicomposting.

60°F 70°F 20° 40° 60° 80° 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 13°F 19°F ❄️ Dormant ~36 weeks
Feb 12°F 19°F ❄️ Dormant ~36 weeks
Mar 20°F 25°F ❄️ Dormant ~36 weeks
Apr 33°F 33°F ❄️ Dormant ~36 weeks
May 44°F 42°F 🐢 Slow ~24 weeks
Jun 56°F 49°F ♻️ Active ~14 weeks
Jul 62°F 58°F ♻️ Active ~14 weeks
Aug 66°F 59°F 🔥 Peak ~8 weeks
Sep 57°F 57°F ♻️ Active ~14 weeks
Oct 44°F 47°F 🐢 Slow ~24 weeks
Nov 33°F 36°F ❄️ Dormant ~36 weeks
Dec 20°F 28°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 Weber County

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

Insect Pest Pressure

5.3 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

1 / 10

Low disease risk — dry conditions reduce fungal problems.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate Apr, May, Jun, Jul, Aug, Sep
Japanese beetles Moderate Jun, Jul, Aug
Squash vine borers Moderate Jun, Jul
Tomato hornworms Moderate Jun, Jul, Aug
Cucumber beetles Moderate May, Jun, Jul
Stink bugs Moderate Jun, Jul, Aug, Sep
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 Weber County

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.

Spring Cover Crops (3 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Jun 2 Jul 27 Rapid growth, attracts pollinators, suppresses weeds
Sorghum-sudan grass Jun 4 Jul 27 Massive biomass, breaks compaction, suppresses nematodes
White clover May 1 Jul 20 ✓ 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 Jun 10 Aug 31 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 Jul 23 May 5 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Jul 29 May 12 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Aug 6 May 5 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 12 May 5 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Aug 24 May 5 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jun 26 May 12 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jun 17 May 12 Erosion control, weed suppression, good biomass

Wind & Microclimate

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

Seasonal Wind Speed

Spring: 15 mph   Summer: 10 mph

Fall: 11 mph   Winter: 14 mph

Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.

Windbreak Benefit

6.7/10

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

Frost Pocket Risk

High

Hilly terrain with 2,981 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.

Rainwater Harvesting Potential

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

Annual Collection

9,220 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 1,000 gal tank.

Legal Status

Limited

Your state has quantity limits on rainwater collection — check local regulations before installing large systems.

Best Collection Months

Mar, Apr, May, Aug

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

Months to Draw From Storage

Feb

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 18.5 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 9,220 gallons annually
  • Check UT state regulations — rainwater harvesting has quantity limits
  • 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 Weber County

Soil Type

Loam

Soil pH 6.6–7.7 · Well Drained drainage

Native soil is well-suited to most vegetables and herbs with regular compost additions.

Watering Needs

Drought stress: 7.5/10

High drought stress. Consistent irrigation is essential — consider drip systems, heavy mulch, and drought-tolerant varieties.

Season Tips

118-day frost-free season

A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.

Your Free Printable Garden Planner

Plan every bed, every planting, every harvest — in one place. This 24-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.

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Recommended for Your Garden

🧪
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.

🍂
Organic Compost $8-30

Boost soil fertility and structure with rich, well-aged organic compost.

🥬 Vegetables to Grow in Weber County

113 vegetables that grow well in Zone 7a with planting dates for Weber County.

Show all 113 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Apr 28 Jun 2 Jun 9 Sep 1 – Oct 6 80–100
Amaranth Apr 7 Jun 2 Jun 9 Sep 8 – Oct 27 90–120
Artichoke Jun 9 Oct 13 – Dec 22 120–180
Arugula Apr 21 May 12 May 26 Jun 30 – Sep 1 30–50
Asparagus Jun 9 730–1095
Beets May 12 Jul 7 – Aug 4 50–70
Belgian Endive Apr 21 May 12 May 26 Sep 15 – Nov 10 110–150
Bitter Melon Apr 7 Jun 2 Jun 9 Aug 11 – Sep 22 60–90
Black Beans Jun 2 Sep 1 – Oct 20 90–120
Bok Choy Apr 21 May 12 May 26 Jul 7 – Aug 11 40–60
Broccoli Apr 21 May 12 May 26 Jul 28 – Sep 8 60–90
Broccoli Rabe Apr 21 May 12 May 26 Jul 7 – Aug 11 40–60
Brussels Sprouts Apr 21 May 12 May 26 Aug 25 – Oct 20 90–130
Butternut Squash Apr 28 Jun 2 Jun 9 Sep 8 – Oct 13 85–110
Cabbage Apr 21 May 12 May 26 Jul 28 – Sep 22 60–100
Calabash Apr 7 Jun 2 Jun 9 Sep 1 – Oct 27 80–120
Cardoon Jun 9 Oct 13 – Nov 24 120–150
Carrots May 12 Jul 14 – Aug 18 60–80
Cauliflower Apr 21 May 12 May 26 Jul 21 – Sep 22 55–100
Celeriac Apr 21 May 12 May 26 Sep 8 – Oct 13 100–120
Celery Apr 21 May 12 May 26 Aug 18 – Oct 13 80–120
Celtuce Apr 21 May 12 May 26 Jul 28 – Sep 8 60–90
Chard Apr 21 May 12 May 26 Jul 21 – Sep 8 50–60
Chayote Apr 7 Jun 2 Jun 9 Oct 13 – Dec 22 120–180
Chickpeas Apr 21 May 12 May 26 Aug 18 – Sep 29 80–110
Chicory Apr 21 May 12 May 26 Jul 28 – Sep 8 60–85
Chinese Cabbage Apr 21 May 12 May 26 Jul 21 – Aug 18 50–70
Christmas Lima Beans Apr 7 Jun 2 Jun 9 Sep 1 – Oct 6 80–100
Collard Greens Apr 21 May 12 May 26 Jul 21 – Sep 22 55–75
Corn Jun 2 Aug 4 – Sep 29 60–100
Cowpeas Jun 2 Aug 4 – Sep 15 60–90
Cress Apr 21 May 12 May 26 Jun 9 – Jun 30 14–21
Crookneck Squash Apr 28 Jun 2 Jun 9 Jul 28 – Aug 25 45–60
Crosne May 12 Oct 13 – Dec 15 150–200
Cucumber Apr 28 Jun 2 Jun 9 Aug 4 – Sep 29 50–70
Daikon May 12 Jul 7 – Aug 4 50–70
Delicata Squash Apr 28 Jun 2 Jun 9 Sep 1 – Oct 6 80–100
Edamame Jun 2 Aug 18 – Sep 29 75–100
Eggplant Mar 24 Jun 2 Jun 9 Aug 18 – Oct 20 65–85
Endive Apr 21 May 12 May 26 Jul 14 – Aug 18 45–65
Escarole Apr 21 May 12 May 26 Jul 21 – Aug 18 50–70
Fava Beans Apr 21 May 12 May 26 Aug 11 – Sep 22 75–100
Fennel Apr 7 Jun 2 Jun 9 Aug 11 – Sep 22 60–90
Garlic 90–240
Green Beans Jun 2 Jul 28 – Sep 22 50–65
Horseradish Jun 9 Oct 13 – Dec 22 120–180
Hot Peppers Mar 24 Jun 2 Jun 9 Aug 18 – Nov 24 70–120
Hubbard Squash Apr 28 Jun 2 Jun 9 Sep 22 – Oct 27 100–120
Jicama Apr 7 Jun 2 Jun 9 Oct 13 – Dec 22 120–180
Kabocha Apr 28 Jun 2 Jun 9 Sep 8 – Oct 6 85–100
Kai Lan Apr 21 May 12 May 26 Jul 14 – Aug 11 45–60
Kale Apr 21 May 12 May 26 Jul 21 – Sep 15 50–70
Kidney Beans Jun 2 Sep 1 – Oct 6 85–110
Kohlrabi Apr 21 May 12 May 26 Jul 14 – Aug 18 45–65
Komatsuna Apr 21 May 12 May 26 Jun 30 – Aug 4 35–50
Leeks Apr 21 May 12 May 26 Aug 25 – Nov 10 90–150
Lentils Apr 21 May 12 May 26 Aug 18 – Sep 29 80–110
Lettuce Apr 21 May 12 May 26 Jun 30 – Sep 8 30–60
Lima Beans Jun 2 Aug 4 – Sep 15 60–90
Loofah Apr 7 Jun 2 Jun 9 Sep 22 – Nov 24 100–150
Luffa Apr 7 Jun 2 Jun 9 Sep 8 – Nov 24 90–150
Mache Apr 21 May 12 May 26 Jul 7 – Aug 11 40–60
Malabar Spinach Apr 7 Jun 2 Jun 9 Aug 4 – Sep 1 55–70
Melon Apr 28 Jun 2 Jun 9 Aug 18 – Oct 6 70–100
Microgreens Apr 21 May 12 May 26 Jun 2 – Jun 30 7–21
Mitsuba Apr 21 May 12 May 19 Jul 14 – Sep 8 50–70
Mizuna Apr 21 May 12 May 26 Jun 30 – Jul 28 30–45
Mustard Greens Apr 21 May 12 May 26 Jun 30 – Sep 1 30–50
Napa Cabbage Apr 21 May 12 May 26 Jul 21 – Aug 25 55–75
New Zealand Spinach Apr 7 Jun 2 Jun 9 Aug 4 – Sep 1 55–70
Okra Apr 7 Jun 2 Jun 9 Aug 4 – Sep 29 50–65
Onion Apr 21 May 12 May 26 Aug 25 – Oct 13 90–120
Pac Choi Apr 21 May 12 May 26 Jul 7 – Aug 4 40–55
Parsnip May 12 Aug 25 – Oct 6 100–130
Patty Pan Squash Apr 28 Jun 2 Jun 9 Jul 28 – Aug 25 45–60
Peas Apr 21 May 12 May 26 Jul 21 – Sep 15 55–70
Peppers Mar 24 Jun 2 Jun 9 Aug 11 – Oct 20 60–90
Pole Beans Apr 7 Jun 2 Jun 9 Aug 4 – Sep 29 55–70
Potatoes Apr 7 Jun 2 Jun 9 Aug 18 – Oct 27 70–120
Pumpkin Apr 28 Jun 2 Jun 9 Sep 8 – Oct 27 85–120
Purslane Apr 21 May 12 May 26 Jul 7 – Aug 11 40–60
Radicchio Apr 21 May 12 May 26 Jul 28 – Sep 1 60–80
Radish May 12 Jun 9 – Jun 30 22–35
Rhubarb Jun 16 365–730
Romanesco Apr 21 May 12 May 26 Aug 11 – Sep 22 75–100
Rutabaga May 12 Aug 4 – Sep 8 80–100
Salsify May 12 Aug 25 – Oct 6 100–130
Savoy Cabbage Apr 21 May 12 May 26 Aug 4 – Sep 29 70–110
Scallions Apr 21 May 12 May 26 Jul 21 – Aug 18 50–70
Scarlet Runner Beans Apr 7 Jun 2 Jun 9 Aug 11 – Sep 15 60–80
Shallot Apr 21 May 12 May 26 Aug 25 – Oct 13 90–120
Shiso Apr 7 Jun 2 Jun 9 Aug 4 – Sep 29 50–70
Snap Peas Apr 7 Jun 2 Jun 9 Aug 4 – Sep 29 55–70
Snow Peas Apr 21 May 12 May 26 Jul 21 – Sep 15 50–65
Soybeans Jun 2 Aug 25 – Oct 20 80–120
Spaghetti Squash Apr 28 Jun 2 Jun 9 Sep 8 – Oct 6 85–100
Spinach Apr 21 May 12 May 26 Jun 30 – Sep 1 35–50
Squash (Summer) Apr 28 Jun 2 Jun 9 Jul 28 – Sep 29 45–65
Squash (Winter) Apr 28 Jun 2 Jun 9 Sep 1 – Oct 27 80–120
Sunchoke Jun 9 Sep 29 – Nov 24 110–150
Sunflower Apr 7 Jun 2 Jun 9 Aug 18 – Oct 6 70–100
Sweet Corn Jun 2 Aug 4 – Sep 15 60–90
Sweet Potatoes Apr 7 Jun 2 Jun 9 Sep 8 – Oct 27 90–120
Tatsoi Apr 21 May 12 May 26 Jun 30 – Aug 4 35–50
Tomatillo Apr 7 Jun 2 Jun 9 Aug 11 – Oct 20 60–85
Tomatoes Apr 7 Jun 2 Jun 9 Aug 11 – Oct 20 60–85
Turnip May 12 Jun 23 – Jul 28 40–60
Watercress Apr 21 May 12 May 26 Jul 7 – Aug 11 40–60
Watermelon Apr 28 Jun 2 Jun 9 Aug 18 – Oct 6 70–100
Wax Beans Jun 2 Jul 28 – Sep 22 50–65
Winter Melon Apr 7 Jun 2 Jun 9 Sep 8 – Oct 27 90–120
Yard Long Beans Apr 7 Jun 2 Jun 9 Aug 4 – Sep 15 55–80
Zucchini Apr 28 Jun 2 Jun 9 Jul 28 – Sep 22 45–60

🍓 Fruits to Grow in Weber County

31 fruits that grow well in Zone 7a with planting dates for Weber County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Jun 16 Sep 15 – Dec 29 90–180
Aronia Jun 16 730–1095
Blackberries Jun 16 365–730
Blueberries Jun 16 730–1095
Boysenberries Jun 16 365–730
Cantaloupe Jun 16 Aug 25 – Sep 29 70–90
Che Fruit Jun 16 1095–1825
Cranberries Jun 16 730–1095
Currants Jun 16 730–1095
Elderberries Jun 16 730–1095
Figs Jun 16 730–1825
Goji Berries Jun 16 730–1095
Gooseberries Jun 16 730–1095
Grapes Jun 16 730–1095
Ground Cherry Jun 16 Aug 25 – Oct 20 65–80
Hardy Kiwi Jun 16 1095–1825
Haskaps Jun 16 730–1095
Honeydew Jun 16 Sep 8 – Oct 20 80–110
Jostaberry Jun 16 730–1095
Kiwi Jun 16 1095–1825
Lingonberries Jun 16 730–1095
Loquat Jun 16 730–1825
Medlar Jun 16 1095–1825
Mulberries Jun 16 730–1825
Pawpaw Jun 16 1095–2555
Persimmon Jun 16 1095–2555
Pomegranate Jun 16 730–1095
Quince Jun 16 1095–1825
Raspberries Jun 16 365–730
Serviceberries Jun 16 730–1095
Strawberries Jun 16 Sep 15 – Jan 26 90–365

🌿 Herbs to Grow in Weber County

39 herbs that grow well in Zone 7a with planting dates for Weber County.

Show all 39 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Apr 21 May 12 May 19 365–730
Anise Apr 21 May 12 May 19 Aug 18 – Nov 3 90–120
Basil Apr 7 Jun 2 Jun 9 Aug 4 – Oct 6 50–75
Bee Balm Jun 2 Sep 1 – Nov 17 90–120
Borage Apr 21 May 12 May 19 Jul 14 – Sep 1 50–60
Caraway Apr 21 May 12 May 19 365–450
Catnip Jun 2 Aug 4 – Oct 6 60–80
Chamomile Apr 21 May 12 May 19 Jul 21 – Sep 29 60–90
Chervil Apr 21 May 12 May 19 Jun 30 – Sep 1 40–60
Chives Jun 2 Aug 4 – Oct 13 60–90
Cilantro Apr 21 May 12 May 19 Jun 30 – Sep 1 40–60
Comfrey Jun 2 Aug 4 – Oct 13 60–90
Cumin Apr 21 May 12 May 19 Sep 1 – Nov 3 100–120
Dill Apr 21 May 12 May 19 Jun 30 – Sep 1 40–60
Echinacea Jun 2 Oct 6 – Jan 12 120–180
Epazote Apr 7 Jun 2 Jun 9 Jul 28 – Sep 22 45–60
Fennel (herb) Apr 21 May 12 May 19 Jul 21 – Sep 29 60–90
Feverfew Jun 2 Sep 1 – Nov 17 90–120
Garlic Chives Jun 2 Aug 4 – Oct 13 60–90
Horehound Jun 2 Aug 18 – Oct 13 75–90
Hyssop Jun 2 Aug 11 – Oct 13 70–90
Lavender Jun 2 Sep 1 – Jan 12 90–200
Lemon Balm Jun 2 Aug 4 – Sep 22 60–70
Lemon Thyme Jun 2 Aug 11 – Oct 13 70–90
Lovage Jun 2 Aug 11 – Oct 13 70–90
Marjoram Jun 2 Aug 4 – Oct 13 60–90
Mint Jun 2 Aug 4 – Oct 13 60–90
Oregano Jun 2 Aug 4 – Oct 13 60–90
Parsley Apr 21 May 12 May 19 Jul 21 – Sep 22 60–80
Rosemary Jun 2 Aug 25 – Jan 12 80–180
Rue Jun 2 Aug 11 – Oct 13 70–90
Sage Jun 2 Aug 18 – Oct 13 75–90
Savory Jun 2 Jul 28 – Sep 22 50–70
Sorrel Apr 21 May 12 May 19 Jun 30 – Sep 1 40–60
Tarragon Jun 2 Aug 4 – Oct 13 60–90
Thai Basil Apr 7 Jun 2 Jun 9 Aug 4 – Oct 6 50–75
Thyme Jun 2 Aug 11 – Oct 13 70–90
Valerian Jun 2 Oct 6 – Jan 12 120–180
Yarrow Jun 2 Sep 1 – Nov 17 90–120
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Monthly Planting Guide for Weber County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Weber County, UT?

Weber County is in USDA Hardiness Zone 7a. 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 Weber County, UT?

Based on 31 years of NOAA weather station data, the median last spring frost in Weber County falls around May 26. In 8 out of 10 years, last frost lands between April 22 and June 19 — a 58-day window of variability. Use June 19 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Weber County, UT?

The median first fall frost in Weber County arrives around September 21. In cold years it can arrive as early as August 24; in mild years as late as October 21. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Weber County?

Weber County has a frost-free growing season of approximately 118 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending shorter by about 0.55 days per decade.

What is the soil like in Weber County for gardening?

Weber County has predominantly Loam soil with a pH range of 6.6–7.7 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Weber County?

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

Is Weber County a good location for home gardening?

Weber County scores 41/100 (Moderate) 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.

🌱

Your Weber County Garden Planner — Free

A 24-page printable planner built for Weber County (Zone 7a). 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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The Gardener's Encyclopedia to Companion Planting

The Gardener's Encyclopedia to Companion Planting

$27 $293 value

The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.

  • Proven pairings for 200+ vegetables, herbs, flowers, and fruits
  • Full seed-starting + planting schedule with timing and spacing
  • Bonus: square-foot gardening guide + printable seasonal planners
See what's inside →
Reader favourite
Seed Saving & Storage Guide

Seed Saving & Storage Guide

$27 $157 value

Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.

  • 200 plants, step-by-step: life cycle, pollination type, isolation
  • Exact temperature + humidity ranges that keep seeds viable
  • Bonus: searchable Google Sheets tracker + custom GPT assistant
Save a lifetime of seed money →
Composting Guide for Homesteaders

Composting Guide for Homesteaders

$27 $210 value

Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.

  • 14 sections on composting methods, soil science, and troubleshooting
  • The 7-step hot-compost system from start to finish
  • Bonus tools: troubleshooting chart, safety guide, monitoring log
Start composting today →

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Weber County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. 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.