Missouri’s August gardens benefit from planting heat-tolerant tomatoes, peppers, and okra that continue producing into fall. If you are searching for the best vegetables to plant in august in missouri, you have come to the right place. August might feel late, but the Show-Me State still offers a solid window for a second round of veggies. The key is picking crops that love the heat and mature fast before the first frost hits. Let us walk you through the top choices, step by step.
August in Missouri means hot days and warm nights. Soil temperatures are high, which helps seeds germinate quickly. But you also need to watch for dry spells and pests. The trick is to plant vegetables that thrive in these conditions. Below, we break down the best options, planting tips, and care routines to keep your garden productive through September and October.
Best Vegetables To Plant In August In Missouri
This section covers the top vegetables that perform well when planted in August across Missouri. From heat-loving staples to quick-growing greens, these picks will keep your harvest going strong.
Heat-Tolerant Tomatoes For Late Summer
Tomatoes are a garden favorite, but not all varieties handle August heat well. Choose heat-set types that set fruit even when nights stay warm. Look for cherry or grape tomatoes, as they tend to be more resilient. Also, consider determinate varieties that mature faster.
- Plant transplants instead of seeds for quicker harvests
- Water deeply at the base to avoid leaf diseases
- Mulch with straw to keep roots cool
- Provide afternoon shade if temps hit 95°F
Good choices include ‘Sun Gold’, ‘Sweet 100’, and ‘Heatmaster’. These can produce fruit until the first frost, which in Missouri typically arrives in mid-October. Stake or cage them early to support heavy clusters.
Peppers That Love The Heat
Peppers are another August winner. They thrive in hot weather and keep producing until cold weather stops them. Both sweet bell peppers and hot varieties like jalapeños or habaneros work well.
Plant peppers from nursery starts for best results. Space them 18 inches apart in well-drained soil. Add a slow-release fertilizer at planting time. Water consistently, but let the soil dry slightly between waterings to prevent root rot.
- Choose compact varieties for faster maturity
- Use black plastic mulch to warm soil further
- Harvest regularly to encourage more fruit
- Protect from strong winds with row covers
Recommended cultivars include ‘California Wonder’, ‘Jalapeño Early’, and ‘Thai Hot’. Peppers can handle light frost, so they often last into November in southern Missouri.
Okra: The Southern Staple
Okra is practically made for Missouri Augusts. It loves heat and humidity, and it grows fast. Plant seeds directly in the ground, 1 inch deep and 12 inches apart. Soak seeds overnight to speed germination.
Okra needs full sun and regular water. Once plants reach 6 inches tall, thin to 18 inches apart. Harvest pods when they are 2-3 inches long for the best texture. If you let them get too big, they become tough.
- Varieties like ‘Clemson Spineless’ and ‘Annie Oakley’ work well
- Cut pods with scissors to avoid damaging stems
- Wear gloves to protect hands from tiny spines
- Harvest every 2-3 days during peak season
Okra will produce until frost. In Missouri, that means you can enjoy fried okra or gumbo well into October.
Southern Peas (Cowpeas)
Southern peas, including black-eyed peas and crowder peas, are heat champions. They fix nitrogen in the soil, improving it for future crops. Plant seeds 1 inch deep, 4 inches apart, in rows 3 feet apart.
These peas need little fertilizer. Water only when the soil is dry. They are drought-tolerant once established. Harvest pods when they turn yellow and dry, or pick green for fresh eating.
- Varieties: ‘California Blackeye’, ‘Pinkeye Purple Hull’
- Plant in succession every 2 weeks for continuous harvest
- Watch for aphids; hose them off with water
- Let some pods dry for next year’s seeds
Southern peas are a low-maintenance option for August planting. They thrive in Missouri’s heat and provide a protein-rich harvest.
Quick-Growing Greens For Fall
While heat-tolerant greens like Swiss chard and collards can go in now, you can also start cool-season greens for fall. Plant seeds of lettuce, spinach, and kale in late August. They will germinate fast in warm soil and grow well as temperatures cool.
For best results, choose heat-resistant lettuce varieties like ‘Jericho’ or ‘Nevada’. Plant seeds 1/4 inch deep, and thin to 6 inches apart. Provide light shade during the hottest part of the day.
- Swiss chard: ‘Bright Lights’ is colorful and heat-tolerant
- Collards: ‘Georgia’ and ‘Vates’ handle heat well
- Kale: ‘Lacinato’ and ‘Red Russian’ are good picks
- Spinach: ‘New Zealand’ spinach is actually heat-tolerant
Greens planted in August will give you harvests through October and sometimes into November with protection.
Beans: Bush And Pole Types
Beans are fast and productive. Bush beans mature in 50-60 days, while pole beans take a bit longer but produce over a longer period. Plant seeds 1 inch deep, 2-3 inches apart for bush types.
Pole beans need a trellis or teepee. They can handle August heat if watered consistently. Avoid wetting the leaves to prevent fungal diseases. Harvest beans when they are firm and snap easily.
- Bush varieties: ‘Provider’, ‘Contender’
- Pole varieties: ‘Kentucky Wonder’, ‘Blue Lake’
- Plant in succession every 2 weeks until mid-August
- Pick daily to keep plants producing
Beans are a reliable choice for August planting in Missouri. They add nitrogen to the soil and give you a tasty crop.
Summer Squash And Zucchini
Summer squash and zucchini grow fast and love heat. Plant seeds directly in hills or rows. Space hills 3 feet apart, with 2-3 seeds per hill. Thin to the strongest plant.
These plants need plenty of water, especially when fruits are forming. Use drip irrigation to keep leaves dry. Watch for squash bugs and powdery mildew. Pick fruits when they are 6-8 inches long for best flavor.
- Varieties: ‘Yellow Crookneck’, ‘Black Beauty’ zucchini
- Plant in late July or early August for fall harvest
- Harvest every other day to avoid oversized fruits
- Use row covers early to protect from pests
Summer squash can produce until frost. In Missouri, that means you might get a good 6-8 weeks of harvest from an August planting.
Root Vegetables For Fall
Root vegetables like beets, carrots, and turnips can be planted in August for a fall harvest. They need loose, well-drained soil. Plant seeds 1/2 inch deep, and keep soil moist until germination.
Beets and turnips grow quickly. Carrots take longer, about 60-70 days. Choose short-season varieties like ‘Danvers’ or ‘Nantes’. Thin seedlings to 2-3 inches apart for proper root development.
- Beets: ‘Detroit Dark Red’, ‘Golden’
- Turnips: ‘Purple Top White Globe’
- Radishes: ‘Cherry Belle’ matures in 25 days
- Carrots: ‘Short ‘n Sweet’ for shallow soil
Root vegetables planted in August will be ready for harvest in October. They store well in the ground if mulched heavily before frost.
Planting Tips For August In Missouri
August planting requires some special care. Here are practical tips to help your vegetables succeed.
Soil Preparation
Before planting, amend your soil with compost or aged manure. August heat can dry out soil quickly, so add organic matter to retain moisture. Test soil pH and adjust to 6.0-7.0 for most vegetables.
Work in a balanced fertilizer like 10-10-10 at planting time. Water the soil deeply a day before planting to ensure good moisture.
Watering Strategies
Water is critical in August. Use drip irrigation or soaker hoses to deliver water directly to roots. Water early in the morning to reduce evaporation. Aim for 1-2 inches of water per week, more during heat waves.
Mulch with straw, grass clippings, or shredded leaves. This keeps soil cool and moist. Avoid overhead watering to prevent leaf diseases.
Pest And Disease Management
August brings pests like aphids, spider mites, and squash bugs. Inspect plants daily. Use insecticidal soap for soft-bodied insects. Handpick larger pests like tomato hornworms.
Rotate crops to reduce disease buildup. Remove any diseased leaves immediately. Use row covers to protect young plants from insects.
Succession Planting
Keep your garden producing by planting in succession. Every 2-3 weeks, plant a new batch of fast-growing crops like beans, radishes, or lettuce. This ensures a steady harvest through fall.
Mark your calendar for planting dates. For example, plant bush beans on August 1, then again on August 15. This way, you get multiple harvests.
Fall Transition Tips
As August ends, prepare for cooler weather. Start planning for frost protection. Have row covers or old sheets ready to cover tender plants.
Plant cool-season crops like broccoli, cabbage, and cauliflower in late August for fall harvest. These crops thrive in cooler temperatures and can handle light frost.
- Broccoli: ‘Green Goliath’ matures in 55 days
- Cabbage: ‘Early Jersey Wakefield’ is quick
- Cauliflower: ‘Snow Crown’ for fall
- Brussels sprouts: ‘Long Island Improved’
These plants need consistent moisture and fertile soil. They will produce through October and into November with protection.
Frequently Asked Questions
What vegetables can I plant in August in Missouri?
You can plant heat-tolerant tomatoes, peppers, okra, southern peas, beans, summer squash, and quick-growing greens. Root vegetables like beets and carrots also work well for fall harvest.
Is it too late to plant tomatoes in August in Missouri?
No, it is not too late if you use transplants of heat-tolerant varieties. Choose determinate types that mature in 60-70 days. Provide afternoon shade and consistent water.
How do I protect August-planted vegetables from heat?
Use mulch to keep soil cool, water deeply in the morning, and provide shade cloth during extreme heat. Plant in areas that get afternoon shade if possible.
Can I plant cool-season crops in August in Missouri?
Yes, you can plant cool-season crops like broccoli, cabbage, and kale in late August. They will germinate in warm soil and grow well as temperatures cool in September.
What is the best way to water August-planted vegetables?
Use drip irrigation or soaker hoses to water at the base. Water early in the morning, and aim for 1-2 inches per week. Mulch helps retain moisture and keeps roots cool.
Final Thoughts On August Planting
August is a productive month for Missouri gardeners. With the right choices, you can enjoy fresh vegetables well into fall. Focus on heat-tolerant crops, use smart watering, and protect plants from pests. Your garden will reward you with a bountiful harvest.
Remember to check your local frost dates. In northern Missouri, the first frost can come in early October. In the south, you might have until late October. Plan accordingly and enjoy the process.
Happy gardening in Missouri’s August heat. Your efforts will pay off with tasty, homegrown vegetables.