Oklahoma’s June thunderstorms provide natural irrigation for heat-loving crops like black-eyed peas. If you’re searching for the best vegetables to plant in june in oklahoma, you’ve come to the right place. June in Oklahoma means hot days, warm soil, and the occasional gullywasher. You can still get a great harvest before fall if you pick the right crops.
Many gardeners think June is too late to plant. That’s not true. Oklahoma’s long growing season gives you plenty of time. You just need to choose vegetables that thrive in heat and mature quickly. Let’s break down exactly what to put in the ground this month.
Best Vegetables To Plant In June In Oklahoma
June planting in Oklahoma is all about heat tolerance and speed. The soil temperature is finally above 70°F, which is perfect for warm-season crops. Here are the top performers for your garden.
Southern Peas And Cowpeas
Black-eyed peas, crowder peas, and purple hull peas are Oklahoma staples. They love the heat and actually produce better when it’s hot. Plant them directly in the ground after the last chance of frost has passed.
- Plant seeds 1 inch deep
- Space rows 2 to 3 feet apart
- Thin seedlings to 4 inches apart
- Harvest in 60 to 70 days
These peas fix nitrogen in the soil. That means they help your other vegetables grow better next season. They also need very little water once established.
Okra
Okra is the king of Oklahoma summer gardens. It thrives in temperatures above 90°F. Plant seeds directly in well-drained soil. Soak the seeds overnight before planting to speed up germination.
- Soak seeds for 12 hours
- Plant 1/2 inch deep
- Space plants 12 inches apart
- Water deeply once a week
Harvest the pods when they are 2 to 3 inches long. If you wait too long, they become tough. Okra plants will produce until the first frost.
Sweet Potatoes
Sweet potatoes need warm soil to grow. June is the perfect time to plant slips. Buy certified disease-free slips from a garden center. Plant them on ridges or mounds for better drainage.
- Plant slips 12 inches apart
- Space rows 3 feet apart
- Keep soil moist for the first week
- Harvest in 90 to 120 days
Sweet potatoes store well for months. They are one of the most rewarding crops for Oklahoma gardeners. Just make sure the soil is loose and sandy.
Summer Squash And Zucchini
These plants grow fast and produce heavily. Plant seeds directly in the ground. Give them plenty of space because the leaves spread wide. Harvest when the fruit is 6 to 8 inches long.
- Plant 3 to 4 seeds per hill
- Space hills 3 feet apart
- Thin to the strongest 2 plants
- Water at the base to prevent mildew
Check for squash bugs every few days. They can destroy a plant quickly. Use row covers early in the season to protect young plants.
Pumpkins
June is the ideal time to plant pumpkins for fall harvest. Choose varieties that mature in 90 to 110 days. Plant seeds in hills or rows. Pumpkins need lots of space to vine out.
- Plant 4 to 5 seeds per hill
- Space hills 6 feet apart
- Thin to 2 plants per hill
- Harvest before the first hard frost
Pumpkins are heavy feeders. Add compost or aged manure to the soil before planting. Water deeply once a week during dry spells.
Watermelon And Cantaloupe
Melons love Oklahoma’s hot summers. Plant seeds directly in warm soil. Use black plastic mulch to heat the soil even more. This helps the plants grow faster.
- Plant seeds 1 inch deep
- Space hills 4 feet apart
- Thin to 2 plants per hill
- Reduce watering as fruit ripens
Melons need consistent water until the fruit sets. After that, less water makes the fruit sweeter. Harvest when the tendril near the fruit turns brown.
Warm Season Greens For June Planting
Leafy greens usually prefer cool weather. But some varieties tolerate heat well. These are perfect for June planting in Oklahoma.
Malabar Spinach
This is not true spinach. It’s a heat-loving vine that tastes like spinach. It grows well in Oklahoma’s summer heat. Plant seeds after the soil warms up.
- Soak seeds for 24 hours
- Plant 1/2 inch deep
- Space plants 12 inches apart
- Provide a trellis for climbing
Harvest the leaves and tender stems regularly. This encourages more growth. Malabar spinach keeps producing until frost.
New Zealand Spinach
Another heat-tolerant alternative to regular spinach. It grows as a bushy plant. Pick the young leaves for salads or cooking. It thrives in hot, dry conditions.
- Plant seeds 1/2 inch deep
- Space plants 18 inches apart
- Water moderately
- Harvest outer leaves first
This plant is very low maintenance. It rarely suffers from pests or diseases. Perfect for beginner gardeners.
Amaranth
Amaranth is both a grain and a leafy green. The leaves taste like mild spinach. It grows extremely well in Oklahoma’s heat. Plant seeds directly in the garden.
- Sow seeds thinly
- Cover lightly with soil
- Thin to 18 inches apart
- Harvest leaves when 6 inches tall
Amaranth is drought tolerant once established. It also produces beautiful seed heads that you can harvest for grain.
Quick Maturing Vegetables For June
Some vegetables grow so fast you can plant them in June and harvest before August. These are great for filling empty spaces in your garden.
Bush Beans
Bush beans are the fastest warm-season crop. They mature in just 50 to 60 days. Plant seeds directly in the ground. They don’t need a trellis.
- Plant seeds 1 inch deep
- Space 2 inches apart
- Rows 18 inches apart
- Harvest when pods are firm
Plant a new batch every two weeks for continuous harvest. This is called succession planting. Keep the soil moist for best germination.
Radishes
Radishes grow incredibly fast. Some varieties mature in just 25 days. Plant them in partial shade if possible. This helps prevent them from getting too spicy.
- Plant seeds 1/2 inch deep
- Space 1 inch apart
- Thin to 2 inches apart
- Harvest when roots are 1 inch wide
Radishes are great for marking rows of slower-growing vegetables. They also loosen the soil with their roots.
Beets
Beets can handle some heat if you keep them watered. Plant seeds directly in the garden. Soak the seeds overnight to speed germination.
- Plant seeds 1/2 inch deep
- Space 2 inches apart
- Thin to 4 inches apart
- Harvest in 50 to 70 days
Beet greens are also edible and nutritious. Harvest them when they are young and tender. The roots store well in the refrigerator.
Turnips
Turnips grow quickly and tolerate heat better than most root crops. Plant them in June for a late summer harvest. Both the roots and greens are edible.
- Plant seeds 1/2 inch deep
- Space 2 inches apart
- Thin to 4 inches apart
- Harvest roots when 2 inches wide
Turnips are very forgiving. They grow well in most soil types. Just keep them watered during dry spells.
Tips For Successful June Planting In Oklahoma
June planting requires some special care. The heat can stress young plants. Here are practical tips to help your garden thrive.
Watering Strategies
Water deeply and less frequently. This encourages deep root growth. Shallow watering makes plants weak and heat-sensitive.
- Water early in the morning
- Use drip irrigation or soaker hoses
- Water at the base, not on leaves
- Mulch to retain moisture
Check soil moisture by sticking your finger 2 inches deep. If it feels dry, it’s time to water. During heat waves, you may need to water every other day.
Soil Preparation
Oklahoma soil can be heavy clay or sandy. Add organic matter to improve both types. Compost, aged manure, or peat moss work well.
- Test your soil pH
- Add lime if pH is below 6.0
- Mix in 2 inches of compost
- Rake the bed smooth
Warm-season vegetables prefer a pH between 6.0 and 6.8. Most Oklahoma soils are slightly acidic. Adjust as needed.
Pest Management
June brings pests like squash bugs, cucumber beetles, and aphids. Monitor your plants daily. Early detection makes control easier.
- Use row covers for young plants
- Handpick large pests
- Spray neem oil for aphids
- Rotate crops each year
Companion planting can help. Plant marigolds near vegetables to repel pests. Dill and basil also deter harmful insects.
Dealing With Heat Stress
Temperatures above 95°F can stress plants. Provide afternoon shade if possible. Use shade cloth or plant near taller crops.
- Water deeply before heat waves
- Mulch heavily around plants
- Avoid transplanting during heat
- Harvest in the morning
Some vegetables will stop producing during extreme heat. Don’t worry. They will resume when temperatures moderate.
Frequently Asked Questions
Can I plant tomatoes in June in Oklahoma?
Yes, but choose heat-tolerant varieties like Heatmaster or Solar Fire. Plant them in a spot with afternoon shade. Water consistently to prevent blossom end rot.
What vegetables should I avoid planting in June in Oklahoma?
Avoid cool-season crops like lettuce, spinach, broccoli, and peas. They will bolt or fail in the heat. Wait until September for these.
Is it too late to plant peppers in June?
Not at all. Peppers love heat. Plant transplants now for a fall harvest. They will produce until the first frost.
How often should I water my June garden in Oklahoma?
Water deeply 2 to 3 times per week. During heat waves, you may need to water daily. Check soil moisture regularly.
Can I plant corn in June in Oklahoma?
Yes, but choose short-season varieties that mature in 70 to 80 days. Plant in blocks for better pollination. Water heavily during tasseling.
Final Thoughts On June Planting
June is a busy month in the Oklahoma garden. The key is choosing the right vegetables and giving them proper care. Focus on heat-loving crops like okra, sweet potatoes, and southern peas.
Don’t forget to plant quick-maturing vegetables like bush beans and radishes. They fill gaps and keep your garden productive. Use mulch to conserve moisture and keep soil cool.
With the right choices, you can enjoy fresh vegetables all summer long. Oklahoma’s long growing season is a gift. Take advantage of it by planting the best vegetables to plant in june in oklahoma.
Remember to water wisely, watch for pests, and harvest regularly. Your garden will reward you with abundant produce. Happy gardening in the Sooner State.