Best Vegetables To Grow In Wyoming

Wyoming’s short growing season and unpredictable frosts call for vegetables that mature rapidly and withstand temperature swings at high altitude. If you’re looking for the best vegetables to grow in wyoming, you need crops that can handle cold nights and deliver a harvest before the first freeze hits in September. This guide walks you through the top picks, planting tips, and tricks to make your Wyoming garden thrive.

Gardening in Wyoming is a challenge, but it’s totally doable with the right choices. You’ll want veggies that germinate fast, grow quickly, and can take a light frost without dying. Think root crops, leafy greens, and cold-hardy brassicas. Let’s dig in.

When you plant in Wyoming, timing is everything. The average growing season lasts only 90 to 120 days in most areas, with zones ranging from 3 to 5. That means you need vegetables that mature in under 80 days, ideally 50 to 60 days. Here are the top performers for your garden.

Cold-Hardy Root Vegetables

Root veggies are your best friends in Wyoming. They can be planted early, tolerate frost, and store well. Plus, they don’t mind a little snow.

Carrots: Choose short-season varieties like ‘Nantes’ or ‘Danvers’ that mature in 55–70 days. Sow seeds directly in early May, after the soil warms a bit. Thin them to 2 inches apart for straight roots.
Beets: ‘Detroit Dark Red’ and ‘Early Wonder’ are reliable. They mature in 50–60 days and can handle light frost. Plant seeds 1 inch deep, 2 inches apart, starting in late April.
Radishes: These are the speedsters of the garden. ‘Cherry Belle’ and ‘French Breakfast’ are ready in 25–30 days. Plant them every two weeks for a continuous harvest.
Turnips: ‘Purple Top White Globe’ matures in 45–60 days. Both the root and greens are edible. Sow in early spring or late summer for a fall crop.

Leafy Greens That Love Cool Weather

Greens are perfect for Wyoming because they grow fast and can be harvested young. They also tolerate light frost, which extends your season.

Spinach: ‘Bloomsdale’ and ‘Tyee’ are cold-tolerant. Plant seeds 1/2 inch deep in early April. Harvest outer leaves when they reach 3 inches. It bolts in heat, so grow it in spring and fall.
Lettuce: Loose-leaf varieties like ‘Black Seeded Simpson’ and ‘Red Sails’ mature in 45–55 days. Sow seeds every two weeks for a steady supply. Use row covers to protect from late frosts.
Kale: ‘Winterbor’ and ‘Lacinato’ are super hardy. They actually taste sweeter after a frost. Plant in early spring or late summer for fall harvest. Matures in 50–60 days.
Swiss Chard: ‘Bright Lights’ is colorful and tough. It matures in 50–60 days and can be harvested as baby greens. Plant in May, and it will produce until hard freeze.

Quick-Maturing Brassicas

Brassicas like broccoli and cabbage need cool temperatures. In Wyoming, plant them early so they head up before the heat of July.

Broccoli: ‘Packman’ and ‘Green Goliath’ mature in 55–70 days. Start seeds indoors 4–6 weeks before last frost, then transplant in mid-May. Space plants 18 inches apart.
Cabbage: ‘Golden Acre’ and ‘Early Jersey Wakefield’ are small, early heads. They mature in 60–70 days. Plant transplants 12–18 inches apart in early May.
Cauliflower: ‘Snow Crown’ is a reliable choice. It needs consistent moisture and cool temps. Matures in 55–65 days. Blanch the head by tying leaves over it when it starts to form.
Brussels Sprouts: ‘Jade Cross’ matures in 90–100 days, so start seeds indoors in March. They taste best after a frost. Space plants 24 inches apart.

Heat-Loving Crops With Short Seasons

Warm-season veggies like tomatoes and peppers need a little help in Wyoming. Use black plastic mulch, row covers, or a greenhouse to boost soil temperature.

Tomatoes: Choose determinate varieties like ‘Early Girl’ or ‘Sub Arctic Plenty’ that mature in 55–70 days. Start seeds indoors 6–8 weeks before last frost. Transplant after soil is 60°F, usually early June.
Peppers: ‘Bell Boy’ and ‘Gypsy’ are early sweet peppers. Mature in 60–70 days. Start indoors 8–10 weeks before last frost. Use wall o’ water or cloches to protect from cold nights.
Squash: Summer squash like ‘Yellow Crookneck’ and ‘Zucchini’ mature in 50–60 days. Plant seeds directly in late May, after frost danger passes. Space 24 inches apart.
Cucumbers: ‘Marketmore’ and ‘Straight Eight’ are reliable. Mature in 55–65 days. Use a trellis to save space and improve air flow. Plant after soil is warm.

Legumes For Nitrogen Fixing

Beans and peas are easy to grow and improve your soil. They need cool temps for peas, warm for beans.

Peas: ‘Sugar Snap’ and ‘Oregon Sugar Pod II’ mature in 55–70 days. Plant seeds 1 inch deep in early April. They love cool weather and stop producing in heat.
Green Beans: ‘Provider’ and ‘Blue Lake 274’ are bush beans that mature in 50–60 days. Plant after soil is 60°F, usually late May. Sow seeds 1 inch deep, 2 inches apart.
Snow Peas: ‘Mammoth Melting Sugar’ is a classic. Harvest when pods are flat. Plant early spring for best results.

Planting Schedule For Wyoming Gardens

Timing is critical. Here’s a month-by-month guide to keep you on track.

April: Early Spring Planting

Soil is still cold, but you can start hardy crops. Use a soil thermometer—if it’s above 40°F, you’re good.

Plant peas, spinach, lettuce, and radishes directly in the ground.
Start broccoli, cabbage, and cauliflower seeds indoors for transplanting in May.
Prepare beds with compost or well-rotted manure.

May: Main Planting Window

Last frost date varies by zone. In Laramie, it’s around May 15. In Cheyenne, May 20. Check your local extension office.

Transplant broccoli, cabbage, and cauliflower outdoors.
Direct sow carrots, beets, turnips, and kale.
Plant potatoes from seed pieces, 4 inches deep.
Wait until late May to plant warm-season crops like tomatoes and peppers.

June: Warm Season Begins

Soil is finally warm enough for heat lovers. Use black plastic mulch to retain heat.

Transplant tomatoes, peppers, and eggplant.
Direct sow beans, squash, and cucumbers.
Plant a second round of greens for fall harvest.

July: Maintenance And Succession Planting

Keep watering and weeding. Plant fall crops now.

Sow carrots, beets, and turnips for fall harvest.
Plant kale and spinach for late-season greens.
Harvest peas and replace with beans.

August: Fall Prep

Start thinking about frost protection. Have row covers ready.

Plant radishes and lettuce for quick fall crops.
Mulch around tomatoes and peppers to keep soil warm.
Water deeply but less often to encourage deep roots.

September: Harvest And Protect

First frost can hit anytime after mid-September. Cover tender crops at night.

Harvest tomatoes green if frost threatens—they’ll ripen indoors.
Dig up root crops before hard freeze.
Leave kale and Brussels sprouts in the ground—they improve with frost.

Soil Preparation And Amendments

Wyoming soil is often alkaline, clay-heavy, or sandy. You need to amend it for good growth.

Testing Your Soil

Get a soil test from your local extension office. It costs around $10–$20. Test for pH, nitrogen, phosphorus, and potassium. Wyoming soil usually has a pH of 7.0 to 8.0, which is too alkaline for some crops.

Improving Soil Structure

Add organic matter to fix drainage and fertility. Compost, aged manure, or peat moss work well. Spread 2–3 inches over your beds and till it in.

For clay soil: Add coarse sand and compost to break up clumps.
For sandy soil: Add compost and vermiculite to hold moisture.
For alkaline soil: Add sulfur or pine needles to lower pH slightly.

Fertilizing Tips

Use a balanced fertilizer like 10-10-10 at planting time. Side-dress with compost tea or fish emulsion every 3–4 weeks. Avoid over-fertilizing, which can burn roots.

Watering Strategies For High Altitude

Wyoming is dry, with low humidity. Wind can dry out soil fast. Water deeply and infrequently to encourage deep roots.

Water early morning to reduce evaporation.
Use drip irrigation or soaker hoses to target roots.
Mulch with straw or grass clippings to retain moisture.
Check soil moisture 2 inches down—if dry, water.

Frost Protection Techniques

Frost can strike any night from late August onward. Be prepared.

Row Covers

Lightweight fabric (like Reemay) protects down to 28°F. Drape it over hoops or directly on plants. Remove during the day if temps rise above 70°F.

Cloches And Walls O’ Water

These are plastic cones or water-filled tubes that surround individual plants. They trap heat and protect down to 25°F. Use for tomatoes and peppers.

Mulching

A thick layer of straw or leaves insulates roots. Apply 4–6 inches around plants before a frost. Remove in the morning if the sun comes out.

Common Pests And Diseases In Wyoming

You’ll deal with fewer pests than in humid regions, but some still show up.

Aphids: Spray with water or insecticidal soap. Attract ladybugs with dill and fennel.
Flea Beetles: Use row covers on young plants. Diatomaceous earth works too.
Cutworms: Place cardboard collars around stems at transplanting.
Powdery Mildew: Space plants for air flow. Water at soil level, not on leaves.
Root Maggots: Rotate crops yearly. Use floating row covers to prevent egg-laying.

Succession Planting For Continuous Harvest

Don’t plant everything at once. Stagger your sowings for a steady supply.

Plant radishes every 2 weeks from April to August.
Sow lettuce every 2 weeks until mid-July.
Plant beans every 3 weeks until late June.
Replace harvested crops with fall greens.

Extending The Growing Season

With a few tools, you can stretch your season by 4–6 weeks.

Cold Frames

A cold frame is a box with a glass or plastic top. It traps solar heat and protects from wind. Use it to start seeds earlier or grow greens into November.

Greenhouses

Even a small hoop house can make a huge difference. You can grow tomatoes and peppers into October. Ventilate on warm days to prevent overheating.

Raised Beds

Raised beds warm up faster in spring and drain better. Build them 6–12 inches high with untreated lumber. Fill with a mix of topsoil, compost, and sand.

Seed Starting Indoors

For crops with long maturity, start seeds indoors. This gives them a head start.

Use seed-starting mix in trays or pots.
Plant seeds 6–8 weeks before last frost for tomatoes and peppers.
Keep soil moist and warm (70–75°F). Use a heat mat if needed.
Provide 14–16 hours of light from grow lights or a sunny window.
Harden off seedlings by exposing them to outdoor conditions for a week before transplanting.

Harvesting And Storage Tips

Pick vegetables at their peak for best flavor. Store them properly to avoid waste.

Root crops: Store in a cool, dark place with high humidity. A root cellar or basement works. Keep in sand or sawdust.
Greens: Wash and dry, then store in a plastic bag in the fridge. Use within a week.
Tomatoes: Store at room temperature, not in the fridge. Green ones ripen in a paper bag.
Squash: Cure in a warm, dry place for 10 days, then store in a cool, dark spot.

Frequently Asked Questions

What is the easiest vegetable to grow in Wyoming?

Radishes are the easiest. They germinate in 4–5 days and mature in 25–30 days. You can plant them early and they tolerate frost.

Can I grow tomatoes in Wyoming?

Yes, but choose early-maturing varieties like ‘Early Girl’ or ‘Sub Arctic Plenty’. Start seeds indoors and use frost protection. With care, you’ll get a good harvest.

When should I plant potatoes in Wyoming?

Plant potato pieces in early May, after the soil is workable. They need 70–90 days to mature. Harvest after the vines die back.

What vegetables grow best in high altitude?

Leafy greens, root crops, and cold-hardy brassicas thrive. Kale, spinach, carrots, beets, and broccoli are top choices. They handle cool temps and short seasons.

How do I protect my garden from Wyoming wind?

Use windbreaks like fences, hedges, or row covers. Plant in blocks rather than rows. Stake tall plants like tomatoes. Mulch to reduce soil drying.

Final Tips For Success

Start small. Pick 3–5 vegetables from this list and focus on them. Keep a garden journal to track planting dates and weather. Join a local gardening group for advice specific to your area. With patience and the right choices, you’ll enjoy fresh veggies from your Wyoming garden.

Remember, every season is different. Some years are warmer, some colder. Be flexible and learn from each year. The best vegetables to grow in wyoming are the ones that work for your specific microclimate. Experiment and have fun.