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Laramie County, WY — Planting Guide

Laramie County, Wyoming Zone 5b July

July in Laramie County, Wyoming — your action list

If you only do a handful of things in the garden this July, make it these. They're sequenced around your zone's frost timing.

Avg. last frost May 19
Avg. first frost September 24
Soil temp (4") 59°F
Watering High
Pest pressure High
Daylight 14.7 hrs
  1. Time to start basil, peppers, and pole beans inside

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Harvest basil, carrots, and cucumber as they ripen

    If you can't use it all right away, check the food-preservation section of your planner.

  3. Start your fall crops: carrots, kale, and lettuce

    A row cover ready in the garage extends your harvest by weeks once the nights turn cold.

Looking ahead to August
  • Starting indoors: vinca (annual)
  • First harvests: basil, carrots, and cucumber
  • Fall sowing: alliums, crocus, and daffodils

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Laramie County is in USDA Zone 5b. The average last spring frost is May 19 and the first fall frost is September 24, giving you a growing season of approximately 128 days.

At an elevation of 6,153 ft, Laramie County receives approximately 19.3 in of rainfall annually. Summer highs average 83°F with winter lows around 13°F. The predominant soil type is Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 31 days year to year — ranging from May 7 in warm years to June 7 in cold years. The growing season is trending longer by about 1.13 days per decade. Laramie County scores 38/100 (Challenging) on the Microclimate Index.

🌡️ Zone

5b (-15°F to -10°F min)

❄️ Last Frost

May 19

🍂 First Frost

September 24

📅 Growing Season

128 days

⛰️ Elevation

6,153 ft

🌧️ Annual Rainfall

19.3 in

Laramie County, WY Short season
128 days
Last Spring Frost May 19
128 growing days
First Fall Frost September 24

Monthly Watering Calendar for Laramie County

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

The practical takeaway: Plants need different amounts of water at different growth stages — heavy at flowering and fruit-set, lighter at establishment. Laramie County's 19" annual rainfall is your starting math; the timing tells you when natural rain will cover you and when you need to step in.

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 1.4" Feb 1.4" Mar 1.6" +2.4" Apr 1.9" +2.2" May 2.1" +3" Jun 1.3" +2.5" Jul 1.8" +2.3" Aug 2" +2.7" Sep 1.6" +2.6" Oct 1.7" Nov 1.2" Dec 1.3"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.4 in 7 days None
Feb 1.4 in 5 days None
Mar 1.6 in 8 days None
Apr 1.9 in 8 days 2.4 in High
May 2.1 in 7 days 2.2 in High
Jun 1.3 in 5 days 3 in High
Jul 1.8 in 6 days 2.5 in High
Aug 2 in 7 days 2.3 in High
Sep 1.6 in 5 days 2.7 in High
Oct 1.7 in 6 days 2.6 in High
Nov 1.2 in 6 days None
Dec 1.3 in 7 days None

Annual total: 19.3 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.

Laramie County Soil Profile

Soil Type

Loam

Soil pH

6.5-8.2

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 May 19 → Sep 24 128 frost-free days Protect crops frost returns May Jun Jul Aug Sep Oct Nov Safe: Jun 7 Protect by: Oct 8

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 7 Oct 8 123 days
Cautious May 26 Oct 2 129 days
Average year May 19 Sep 24 128 days
Optimistic May 12 Sep 17 128 days
Aggressive (risky) May 7 Sep 7 123 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±31 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 1.1 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

38 Challenging
Frost Timing Risk
10.0/10
Drought Risk
7.5/10
Soil Difficulty
1.0/10
Altitude Challenge
10.0/10
Climate Shift
4.5/10
Rainfall Challenge
4.3/10

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

Zone 5b Frost Countdown
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Loading...
Last Frost: May 19 First Frost: Sep 24

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

County Extension Office

Laramie County University of Wyoming Extension Extension Office

Phone: 307-766-5124

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 WY →

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 Laramie County

Soil testing High-altitude gardening Pest identification
Finding local nurseries & garden centers in Laramie County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Laramie 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 Laramie County WY" or "garden center Laramie 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 Laramie County WY" or check your extension office and local parks department. Facebook groups like "Laramie County Gardeners" or "Wyoming 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 Cilantro (harvest ends Aug 25) 30 days until frost
After Mustard Greens (harvest ends Aug 25) 30 days until frost
After Napa Cabbage (harvest ends Aug 18) 37 days until frost
Show 6 more succession options
After Dill (harvest ends Aug 25) 30 days until frost
After Chervil (harvest ends Aug 25) 30 days until frost
After Hyacinths (harvest ends May 19) 128 days until frost
After New Zealand Spinach (harvest ends Aug 25) 30 days until frost
After Alliums (harvest ends Jul 14) 72 days until frost
After Anemones (harvest ends Jul 21) 65 days until frost

Sunlight & Day Length in Laramie County

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

For new gardeners: Onion varieties are sold by "short-day," "intermediate-day," and "long-day." Laramie County's latitude determines which to buy — and getting it wrong is the difference between baseball-sized bulbs and marbles.

Longest Day

15 hours

Summer solstice daylight

Shortest Day

9 hours

Winter solstice daylight

Peak Sun Hours

11.1 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 4h 7h 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 5.1 hr Short day
February 10.4 hr 6.2 hr Short day
March 11.7 hr 7.3 hr Short day
April 13.1 hr 7.4 hr Neutral
May 14.3 hr 8.5 hr Long day
June 15 hr 11.1 hr Long day
July 14.7 hr 9.9 hr Long day
August 13.7 hr 9.5 hr Neutral
September 12.3 hr 8.3 hr Neutral
October 10.9 hr 6.8 hr Short day
November 9.6 hr 5.4 hr Short day
December 9 hr 5 hr Short day

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

Soil Temperature & Composting in Laramie County

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

Why it matters: Watching soil temperature (not air) is the single biggest upgrade most new gardeners can make. Laramie County's typical curve helps you plan — but a $5 soil thermometer in the bed beats any average.

Plant Warm Crops When

Soil reaches 60°F+

Soil rarely reaches 60°F — use black plastic mulch to warm soil.

Best Month to Compost

Jun

Microbial activity peaks when soil is warm.

Active Composting

4 months

Short season — insulate pile or use indoor vermicomposting.

60°F 18° 35° 53° 70° 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 5°F 14°F ❄️ Dormant ~36 weeks
Feb 8°F 11°F ❄️ Dormant ~36 weeks
Mar 12°F 18°F ❄️ Dormant ~36 weeks
Apr 26°F 27°F ❄️ Dormant ~36 weeks
May 39°F 36°F ❄️ Dormant ~36 weeks
Jun 50°F 47°F ♻️ Active ~14 weeks
Jul 59°F 54°F ♻️ Active ~14 weeks
Aug 59°F 56°F ♻️ Active ~14 weeks
Sep 52°F 51°F ♻️ Active ~14 weeks
Oct 38°F 43°F ❄️ Dormant ~36 weeks
Nov 23°F 32°F ❄️ Dormant ~36 weeks
Dec 14°F 21°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 Laramie County

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

For new gardeners: Two gardeners can grow identical seeds and get wildly different results based on pest pressure alone. Laramie County's climate sets a floor on what's possible without intervention.

Insect Pest Pressure

4.8 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

2.3 / 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 May, Jun, Jul, Aug
Japanese beetles Moderate Jun, Jul, Aug
Squash bugs Low Jun, Jul, Aug
Tomato hornworms Moderate Jul, Aug
Cabbage loopers Low May, Jun, Jul, Aug
Slugs Low Apr, May, Jun
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 Laramie County

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

What this means for you: Bare soil is wasted soil — it loses nutrients to rain, dries out, compacts, and gets taken over by weeds. Cover crops (clovers, ryegrass, vetch, peas) are the "between seasons" trick that makes soil better every year. In Laramie County, you can fit a cover crop into the gaps.

Spring Cover Crops (3 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 29 Jul 23 Rapid growth, attracts pollinators, suppresses weeds
Sorghum-sudan grass May 23 Jul 23 Massive biomass, breaks compaction, suppresses nematodes
White clover Apr 22 Jul 23 ✓ 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 11 Sep 10 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (6 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Austrian winter peas Jul 27 Apr 28 ✓ Yes Fixes nitrogen, good for heavy clay soils
Daikon radish Jul 29 Apr 28 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 19 May 5 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Aug 13 Apr 28 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jun 18 May 5 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jun 17 May 5 Erosion control, weed suppression, good biomass

Wind & Microclimate in Laramie County

Why this matters: Pollinators avoid windy days. Laramie County's 11.6 mph average wind isn't enough to stop bees and butterflies — but plant fruiting crops (tomatoes, peppers, squash) in protected microclimates and you'll see noticeably better fruit set.

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

Seasonal Wind Speed

Spring: 15 mph   Summer: 12 mph

Fall: 13 mph   Winter: 14 mph

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

Windbreak Benefit

6.6/10

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

Frost Pocket Risk

High

Hilly terrain with 2,413 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.

Rainwater Harvesting in Laramie County

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

Why this matters: Captured rainwater is better for plants than tap water (no chlorine), works during water restrictions, and reduces stormwater runoff. Laramie County's 19" annual rainfall is a meaningful pool — most homes could capture 10,000+ gallons a year with a decent system.

Annual Collection

9,619 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 1,750 gal tank.

Legal Status

Unrestricted

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

Best Collection Months

Apr, May, Jul, Aug

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

Months to Draw From Storage

Jun, Nov, Dec

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 19.3 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 9,619 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 Laramie County

Soil Type

Loam

Soil pH 6.5–8.2 · Excessively 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

128-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 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

🧪
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 Laramie County

105 vegetables that grow well in Zone 5b with planting dates for Laramie County.

Show all 105 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Apr 14 May 26 Jun 2 Aug 25 – Sep 29 80–100
Amaranth Mar 24 May 26 Jun 2 Sep 1 – Oct 20 90–120
Arugula Apr 14 May 5 May 19 Jul 16 Jun 23 – Aug 25 30–50
Asparagus Jun 2 730–1095
Beets May 5 Jul 16 Jun 30 – Jul 28 50–70
Belgian Endive Apr 14 May 5 May 19 Jul 16 Sep 8 – Nov 3 110–150
Bitter Melon Mar 24 May 26 Jun 2 Aug 4 – Sep 15 60–90
Black Beans May 26 Aug 25 – Oct 13 90–120
Bok Choy Apr 14 May 5 May 19 Jul 16 Jun 30 – Aug 4 40–60
Broccoli Apr 14 May 5 May 19 Jul 16 Jul 21 – Sep 1 60–90
Broccoli Rabe Apr 14 May 5 May 19 Jul 16 Jun 30 – Aug 4 40–60
Brussels Sprouts Apr 14 May 5 May 19 Jul 16 Aug 18 – Oct 13 90–130
Butternut Squash Apr 14 May 26 Jun 2 Sep 1 – Oct 6 85–110
Cabbage Apr 14 May 5 May 19 Jul 16 Jul 21 – Sep 15 60–100
Calabash Mar 24 May 26 Jun 2 Aug 25 – Oct 20 80–120
Carrots May 5 Jul 16 Jul 7 – Aug 11 60–80
Cauliflower Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 15 55–100
Celeriac Apr 14 May 5 May 19 Jul 16 Sep 1 – Oct 6 100–120
Celery Apr 14 May 5 May 19 Jul 16 Aug 11 – Oct 6 80–120
Celtuce Apr 14 May 5 May 19 Jul 16 Jul 21 – Sep 1 60–90
Chard Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 1 50–60
Chickpeas Apr 14 May 5 May 19 Jul 16 Aug 11 – Sep 22 80–110
Chicory Apr 14 May 5 May 19 Jul 16 Jul 21 – Sep 1 60–85
Chinese Cabbage Apr 14 May 5 May 19 Jul 16 Jul 14 – Aug 11 50–70
Christmas Lima Beans Mar 24 May 26 Jun 2 Aug 25 – Sep 29 80–100
Collard Greens Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 15 55–75
Corn May 26 Jul 28 – Sep 22 60–100
Cowpeas May 26 Jul 28 – Sep 8 60–90
Cress Apr 14 May 5 May 19 Jul 16 Jun 2 – Jun 23 14–21
Crookneck Squash Apr 14 May 26 Jun 2 Jul 21 – Aug 18 45–60
Crosne May 5 Jul 16 Oct 6 – Oct 20 150–200
Cucumber Apr 14 May 26 Jun 2 Jul 28 – Sep 22 50–70
Daikon May 5 Jul 16 Jun 30 – Jul 28 50–70
Delicata Squash Apr 14 May 26 Jun 2 Aug 25 – Sep 29 80–100
Edamame May 26 Aug 11 – Sep 22 75–100
Eggplant Mar 10 May 26 Jun 2 Aug 11 – Oct 13 65–85
Endive Apr 14 May 5 May 19 Jul 16 Jul 7 – Aug 11 45–65
Escarole Apr 14 May 5 May 19 Jul 16 Jul 14 – Aug 11 50–70
Fava Beans Apr 14 May 5 May 19 Jul 16 Aug 4 – Sep 15 75–100
Fennel Mar 24 May 26 Jun 2 Aug 4 – Sep 15 60–90
Garlic Aug 13 Nov 12 – Jan 28 90–240
Green Beans May 26 Jul 21 – Sep 15 50–65
Horseradish Jun 2 Oct 6 – Nov 17 120–180
Hot Peppers Mar 10 May 26 Jun 2 Aug 11 – Nov 17 70–120
Hubbard Squash Apr 14 May 26 Jun 2 Sep 15 – Oct 20 100–120
Kabocha Apr 14 May 26 Jun 2 Sep 1 – Sep 29 85–100
Kai Lan Apr 14 May 5 May 19 Jul 16 Jul 7 – Aug 4 45–60
Kale Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 8 50–70
Kidney Beans May 26 Aug 25 – Sep 29 85–110
Kohlrabi Apr 14 May 5 May 19 Jul 16 Jul 7 – Aug 11 45–65
Komatsuna Apr 14 May 5 May 19 Jul 16 Jun 23 – Jul 28 35–50
Leeks Apr 14 May 5 May 19 Jul 16 Aug 18 – Nov 3 90–150
Lentils Apr 14 May 5 May 19 Jul 16 Aug 11 – Sep 22 80–110
Lettuce Apr 14 May 5 May 19 Jul 16 Jun 23 – Sep 1 30–60
Lima Beans May 26 Jul 28 – Sep 8 60–90
Mache Apr 14 May 5 May 19 Jul 16 Jun 30 – Aug 4 40–60
Melon Apr 14 May 26 Jun 2 Aug 11 – Sep 29 70–100
Microgreens Apr 14 May 5 May 19 Jul 16 May 26 – Jun 23 7–21
Mitsuba Apr 14 May 5 May 12 Jul 16 Jul 7 – Sep 1 50–70
Mizuna Apr 14 May 5 May 19 Jul 16 Jun 23 – Jul 21 30–45
Mustard Greens Apr 14 May 5 May 19 Jul 16 Jun 23 – Aug 25 30–50
Napa Cabbage Apr 14 May 5 May 19 Jul 16 Jul 14 – Aug 18 55–75
New Zealand Spinach Mar 24 May 26 Jun 2 Jul 28 – Aug 25 55–70
Okra Mar 24 May 26 Jun 2 Jul 28 – Sep 22 50–65
Onion Apr 14 May 5 May 19 Jul 16 Aug 18 – Oct 6 90–120
Pac Choi Apr 14 May 5 May 19 Jul 16 Jun 30 – Jul 28 40–55
Parsnip May 5 Jul 16 Aug 18 – Sep 29 100–130
Patty Pan Squash Apr 14 May 26 Jun 2 Jul 21 – Aug 18 45–60
Peas Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 8 55–70
Peppers Mar 10 May 26 Jun 2 Aug 4 – Oct 13 60–90
Pole Beans Mar 24 May 26 Jun 2 Jul 28 – Sep 22 55–70
Potatoes Mar 24 May 26 Jun 2 Aug 11 – Oct 20 70–120
Pumpkin Apr 14 May 26 Jun 2 Sep 1 – Oct 20 85–120
Purslane Apr 14 May 5 May 19 Jul 16 Jun 30 – Aug 4 40–60
Radicchio Apr 14 May 5 May 19 Jul 16 Jul 21 – Aug 25 60–80
Radish May 5 Jul 16 Jun 2 – Jun 23 22–35
Rhubarb Jun 9 365–730
Romanesco Apr 14 May 5 May 19 Jul 16 Aug 4 – Sep 15 75–100
Rutabaga May 5 Jul 16 Jul 28 – Sep 1 80–100
Salsify May 5 Jul 16 Aug 18 – Sep 29 100–130
Savoy Cabbage Apr 14 May 5 May 19 Jul 16 Jul 28 – Sep 22 70–110
Scallions Apr 14 May 5 May 19 Jul 16 Jul 14 – Aug 11 50–70
Scarlet Runner Beans Mar 24 May 26 Jun 2 Aug 4 – Sep 8 60–80
Shallot Apr 14 May 5 May 19 Jul 16 Aug 18 – Oct 6 90–120
Shiso Mar 31 May 26 Jun 2 Jul 28 – Sep 22 50–70
Snap Peas Mar 24 May 26 Jun 2 Jul 28 – Sep 22 55–70
Snow Peas Apr 14 May 5 May 19 Jul 16 Jul 14 – Sep 8 50–65
Soybeans May 26 Aug 18 – Oct 13 80–120
Spaghetti Squash Apr 14 May 26 Jun 2 Sep 1 – Sep 29 85–100
Spinach Apr 14 May 5 May 19 Jul 16 Jun 23 – Aug 25 35–50
Squash (Summer) Apr 14 May 26 Jun 2 Jul 21 – Sep 22 45–65
Squash (Winter) Apr 14 May 26 Jun 2 Aug 25 – Oct 20 80–120
Sunchoke Jun 2 Sep 22 – Nov 17 110–150
Sweet Corn May 26 Jul 28 – Sep 8 60–90
Sweet Potatoes Mar 24 May 26 Jun 2 Sep 1 – Oct 20 90–120
Tatsoi Apr 14 May 5 May 19 Jul 16 Jun 23 – Jul 28 35–50
Tomatillo Mar 24 May 26 Jun 2 Aug 4 – Oct 13 60–85
Tomatoes Mar 24 May 26 Jun 2 Aug 4 – Oct 13 60–85
Turnip May 5 Jul 16 Jun 16 – Jul 21 40–60
Watercress Apr 14 May 5 May 19 Jul 16 Jun 30 – Aug 4 40–60
Watermelon Apr 14 May 26 Jun 2 Aug 11 – Sep 29 70–100
Wax Beans May 26 Jul 21 – Sep 15 50–65
Winter Melon Mar 24 May 26 Jun 2 Sep 1 – Oct 20 90–120
Yard Long Beans Mar 24 May 26 Jun 2 Jul 28 – Sep 8 55–80
Zucchini Apr 14 May 26 Jun 2 Jul 21 – Sep 15 45–60

🍓 Fruits to Grow in Laramie County

27 fruits that grow well in Zone 5b with planting dates for Laramie County.

Show all 27 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Jun 9 Sep 8 – Nov 24 90–180
Aronia Jun 9 730–1095
Blackberries Jun 9 365–730
Blueberries Jun 9 730–1095
Boysenberries Jun 9 365–730
Cantaloupe Jun 9 Aug 18 – Sep 22 70–90
Che Fruit Jun 9 1095–1825
Cranberries Jun 9 730–1095
Currants Jun 9 730–1095
Elderberries Jun 9 730–1095
Goji Berries Jun 9 730–1095
Gooseberries Jun 9 730–1095
Grapes Jun 9 730–1095
Ground Cherry Jun 9 Aug 18 – Oct 13 65–80
Hardy Kiwi Jun 9 1095–1825
Haskaps Jun 9 730–1095
Honeydew Jun 9 Sep 1 – Oct 13 80–110
Jostaberry Jun 9 730–1095
Lingonberries Jun 9 730–1095
Medlar Jun 9 1095–1825
Mulberries Jun 9 730–1825
Pawpaw Jun 9 1095–2555
Persimmon Jun 9 1095–2555
Quince Jun 9 1095–1825
Raspberries Jun 9 365–730
Serviceberries Jun 9 730–1095
Strawberries Jun 9 Sep 8 – Nov 24 90–365

🌿 Herbs to Grow in Laramie County

34 herbs that grow well in Zone 5b with planting dates for Laramie County.

Show all 34 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Apr 14 May 5 May 12 Jul 16 365–730
Anise Apr 14 May 5 May 12 Jul 16 Aug 11 – Oct 27 90–120
Basil Mar 31 May 26 Jun 2 Jul 28 – Sep 29 50–75
Bee Balm May 26 Aug 25 – Nov 10 90–120
Borage Apr 14 May 5 May 12 Jul 16 Jul 7 – Aug 25 50–60
Caraway Apr 14 May 5 May 12 Jul 16 365–450
Catnip May 26 Jul 28 – Sep 29 60–80
Chamomile Apr 14 May 5 May 12 Jul 16 Jul 14 – Sep 22 60–90
Chervil Apr 14 May 5 May 12 Jul 16 Jun 23 – Aug 25 40–60
Chives May 26 Jul 28 – Oct 6 60–90
Cilantro Apr 14 May 5 May 12 Jul 16 Jun 23 – Aug 25 40–60
Comfrey May 26 Jul 28 – Oct 6 60–90
Cumin Apr 14 May 5 May 12 Jul 16 Aug 25 – Oct 27 100–120
Dill Apr 14 May 5 May 12 Jul 16 Jun 23 – Aug 25 40–60
Epazote Mar 31 May 26 Jun 2 Jul 21 – Sep 15 45–60
Fennel (herb) Apr 14 May 5 May 12 Jul 16 Jul 14 – Sep 22 60–90
Feverfew May 26 Aug 25 – Nov 10 90–120
Garlic Chives May 26 Jul 28 – Oct 6 60–90
Horehound May 26 Aug 11 – Oct 6 75–90
Hyssop May 26 Aug 4 – Oct 6 70–90
Lemon Balm May 26 Jul 28 – Sep 15 60–70
Lemon Thyme May 26 Aug 4 – Oct 6 70–90
Lovage May 26 Aug 4 – Oct 6 70–90
Mint May 26 Jul 28 – Oct 6 60–90
Oregano May 26 Jul 28 – Oct 6 60–90
Parsley Apr 14 May 5 May 12 Jul 16 Jul 14 – Sep 15 60–80
Rue May 26 Aug 4 – Oct 6 70–90
Sage May 26 Aug 11 – Oct 6 75–90
Savory May 26 Jul 21 – Sep 15 50–70
Sorrel Apr 14 May 5 May 12 Jul 16 Jun 23 – Aug 25 40–60
Tarragon May 26 Jul 28 – Oct 6 60–90
Thai Basil Mar 31 May 26 Jun 2 Jul 28 – Sep 29 50–75
Thyme May 26 Aug 4 – Oct 6 70–90
Valerian May 26 Sep 29 – Nov 10 120–180

🌸 Flowers to Grow in Laramie County

51 flowers that grow well in Zone 5b with planting dates for Laramie County.

Show all 51 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 31 May 26 May 26 Jul 21 – Oct 20 60–75
Alliums Aug 13 Sep 17 – Oct 8 28–42
Anemones Apr 21 May 19 Jun 23 – Jul 21 90–120
Astilbe Mar 17 Jun 2 Aug 18 – Oct 27 70–100
Bachelor's Button Apr 7 Apr 28 May 19 Jul 21 – Oct 6 60–90
Begonias Mar 10 May 26 Aug 4 – Oct 27 70–90
Black-eyed Susan Mar 17 May 19 Jun 2 Aug 18 – Nov 24 60–80
Bleeding Hearts Mar 17 Jun 2 Jul 28 – Sep 8 60–90
Calendula Apr 7 Apr 28 May 19 Jul 7 – Oct 6 50–70
Celosia Apr 14 May 26 May 26 Jul 28 – Nov 3 60–90
Columbine Mar 17 Jun 2 Jun 2 Jul 28 – Sep 8 70–100
Coreopsis Mar 17 May 26 Jun 2 Aug 11 – Nov 24 60–80
Cosmos Apr 21 May 19 May 19 Jul 28 – Oct 27 60–90
Crocus Aug 13 Jun 25 – Jul 16 10–20
Daffodils Aug 13 Jul 2 – Jul 23 20–40
Dahlias Apr 21 May 26 May 26 Aug 18 – Nov 17 70–120
Daylily Mar 17 Jun 2 Aug 25 – Nov 24 60–90
Dianthus Mar 17 Apr 21 May 5 Jun 23 – Sep 15 60–80
Echinacea (Purple Coneflower) Mar 17 Jun 2 Jun 2 Aug 25 – Nov 24 70–90
Foxglove Mar 17 Jun 2 Jun 2 Jul 28 – Sep 8 80–120
Gaillardia (Blanket Flower) Mar 24 May 26 May 26 Aug 4 – Nov 24 70–100
Geraniums Mar 10 May 26 Aug 4 – Oct 27 70–100
Gladiolus May 26 May 26 Aug 18 – Nov 17 70–100
Hostas Mar 10 Jun 2 Aug 25 – Nov 24 60–90
Hyacinths Aug 13 Jul 23 – Aug 20 14–28
Hydrangeas Mar 10 Jun 2 Aug 18 – Nov 10 90–150
Impatiens Mar 24 May 26 Aug 4 – Nov 3 60–75
Irises Division Jun 2 Jul 28 – Sep 1 60–100
Larkspur Apr 21 Jun 30 – Aug 25 60–90
Lavender Mar 10 Jun 9 Aug 18 – Oct 6 90–120
Lilies Division Jun 2 Aug 11 – Nov 10 70–120
Lobelia Mar 10 May 12 Jul 7 – Sep 22 70–80
Lupine Mar 17 Jun 2 Jun 2 Jul 28 – Sep 8 75–100
Marigolds Apr 7 May 26 May 26 Jul 21 – Oct 20 50–70
Nasturtium Apr 21 May 26 May 26 Jul 21 – Nov 3 55–65
Pansy Mar 10 May 19 Jul 14 – Sep 15 70–90
Peonies Division Jun 2 Aug 11 – Sep 22 90–120
Petunia Mar 24 May 26 Aug 4 – Nov 3 70–90
Phlox Mar 17 Jun 2 Jun 2 Aug 18 – Nov 10 80–110
Portulaca Apr 14 May 26 May 26 Jul 14 – Oct 20 50–70
Roses Mar 10 Jun 2 Aug 18 – Nov 24 90–180
Salvia Mar 17 May 26 Aug 4 – Nov 3 70–90
Sedum (Stonecrop) Mar 17 Jun 2 Sep 29 – Dec 8 60–90
Snapdragon Mar 10 May 5 May 19 Jul 28 – Oct 6 70–100
Sunflower Apr 28 May 26 May 26 Aug 18 – Nov 3 70–100
Sweet Alyssum Mar 31 May 5 May 19 Jun 30 – Sep 8 45–60
Sweet Pea Apr 7 Apr 14 May 19 Aug 4 – Oct 6 65–85
Tulips Aug 13 Jul 16 – Aug 6 15–30
Vinca (Annual) Mar 3 May 26 Aug 4 – Oct 27 70–90
Yarrow Mar 17 May 19 Jun 2 Aug 11 – Nov 24 60–90
Zinnia Apr 21 May 26 May 26 Aug 4 – Nov 3 60–70

Monthly Planting Guide for Laramie County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Laramie County, WY?

Laramie County is in USDA Hardiness Zone 5b. 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 Laramie County, WY?

Based on 31 years of NOAA weather station data, the median last spring frost in Laramie County falls around May 19. In 8 out of 10 years, last frost lands between May 7 and June 7 — a 31-day window of variability. Use June 7 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Laramie County, WY?

The median first fall frost in Laramie County arrives around September 24. In cold years it can arrive as early as September 7; in mild years as late as October 8. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Laramie County?

Laramie County has a frost-free growing season of approximately 128 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 longer by about 1.13 days per decade.

What is the soil like in Laramie County for gardening?

Laramie County has predominantly Loam soil with a pH range of 6.5–8.2 and Excessively Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Laramie County?

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

Is Laramie County a good location for home gardening?

Laramie County scores 38/100 (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 Laramie County (Zone 5b). 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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Composting Guide for Homesteaders

Composting Guide for Homesteaders

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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.

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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 Laramie 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.