Missouri Planting Guide: What to Grow and When
A complete Missouri planting guide covering USDA zones 5b–7a, frost dates by city, a month-by-month planting calendar, and the top vegetables and plants for northern plains, central Missouri, the Ozarks, and the Bootheel.
Missouri gardeners work with one of the most weather-variable climates in the country. A warm spell in late March that tempts early transplanting can give way to a hard freeze the following week — a pattern experienced in Columbia and Kansas City every few years. Meanwhile, southeast Missouri’s Bootheel is already weeks into its growing season when northern Missouri growers are still waiting for the ground to firm up after the final thaw.
That range explains why a single Missouri planting guide needs to cover four distinct climate regions. USDA hardiness zones in the state span from 5b in the far northern counties to 7a in the Bootheel — a spread of nearly three full zones. Last spring frost dates vary by six weeks across the state, and the first fall frost arrives in mid-October in Kirksville but holds off until November in Cape Girardeau. Plants that overwinter reliably in southeast Missouri will not survive a northern Missouri winter without protection.
This guide covers the full picture: frost dates by city, a month-by-month planting calendar for three reference regions, and the vegetables and plants that perform consistently across Missouri’s variable conditions. Data and timing references draw on University of Missouri Extension research, which provides some of the Midwest’s most detailed state-specific growing guidance. Whether you’re working a compact St. Louis backyard or a large Ozarks garden, the framework here will sharpen your seasonal timing and plant selection decisions.
The most consistent pattern across all Missouri regions: the state’s best vegetable production happens in spring and early fall, during the windows before summer heat and humidity peak. Getting your transplant timing right around those windows — not too early to risk late frost, not too late to lose productive weeks to summer stress — is the foundation of a genuinely productive Missouri garden.
Missouri’s Climate Zones: Know Your Region First
Missouri spans USDA hardiness zones 5b through 7a, with the majority of the state falling in zones 6a and 6b. Before any planting decision, your zone determines frost timing, the length of your productive growing season, and which crops will reliably produce before summer heat peaks or fall frost arrives.
Four regions define Missouri’s growing conditions:
- Far Northern Plains (Kirksville, Milan, Macon) — Zone 5b. The coldest region of the state, with average winter lows reaching −15°F to −10°F. Last frost typically mid-to-late April; growing season of 155–170 days. Requires short-season variety selection for crops like sweet corn and squash.
- Northern and Northwest Missouri (St. Joseph, Chillicothe, Cameron) — Zone 6a. Moderately cold winters, last frost typically mid-April, growing season of 170–185 days. Very similar to central Iowa conditions.
- Central Missouri and St. Louis (Kansas City, Columbia, Jefferson City, St. Louis) — Zones 6a–6b. The most broadly gardened region of the state. Last frost mid-April in Kansas City and Columbia; early April in St. Louis. The urban heat island effect gives St. Louis a Zone 6b classification with average minimum temperatures 5°F warmer than rural central Missouri at the same latitude.
- Southern Missouri and Ozarks (Springfield, Joplin, Rolla, Branson) — Zone 6b. Mild winters by Midwest standards, last frost early-to-mid April, growing season 195–210 days. Ozark topography creates microclimates — valley bottoms experience frost later in fall and earlier in spring than surrounding hillsides at the same elevation.
- Southeast Missouri and the Bootheel (Cape Girardeau, Poplar Bluff, Sikeston, Hayti) — Zone 7a. The warmest region of Missouri. Last frost late March to early April, first fall frost in November, and growing seasons approaching 235 days. Many plants winter-hardy only to zone 7 can be grown as perennials here that would fail elsewhere in the state.
| Region | Major Cities | USDA Zone | Avg Winter Low | Growing Season |
|---|---|---|---|---|
| Far Northern Plains | Kirksville, Milan, Macon | 5b | −15°F to −10°F | 155–170 days |
| Northern / NW Missouri | St. Joseph, Chillicothe | 6a | −10°F to −5°F | 170–185 days |
| Central Missouri | Kansas City, Columbia, Jefferson City | 6a | −10°F to −5°F | 185–200 days |
| St. Louis Metro | St. Louis, St. Charles | 6b | −5°F to 0°F | 200–215 days |
| Southern MO / Ozarks | Springfield, Rolla, Joplin | 6b | −5°F to 0°F | 195–210 days |
| SE Missouri / Bootheel | Cape Girardeau, Poplar Bluff, Sikeston | 7a | 0°F to 5°F | 215–235 days |
Missouri Frost Dates by City
Last spring frost and first fall frost dates define the windows for planting and protecting frost-sensitive crops. University of Missouri Extension provides frost probability tables for cities across the state; the dates below represent average 50% probability dates for planning purposes. For frost-sensitive transplants, especially peppers and basil, use the 10% probability date (approximately one to two weeks later) if you want stronger protection against late cold snaps.
| City / Region | Zone | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|---|
| Kirksville (N. Plains) | 5b | April 25 – May 1 | October 5–15 | ~158 |
| St. Joseph (NW) | 6a | April 15–22 | October 15–22 | ~175 |
| Kansas City | 6a | April 10–18 | October 25 – Nov 1 | ~195 |
| Columbia | 6a | April 12–20 | October 18–26 | ~190 |
| Jefferson City | 6a | April 12–20 | October 20–28 | ~190 |
| St. Louis | 6b | April 2–10 | November 1–8 | ~210 |
| Springfield | 6b | April 8–16 | October 26 – Nov 3 | ~200 |
| Joplin | 6b | April 5–14 | October 28 – Nov 5 | ~205 |
| Cape Girardeau (SE) | 7a | March 28 – April 6 | November 5–15 | ~220 |
| Sikeston / Bootheel | 7a | March 22–30 | November 10–18 | ~232 |
Source: University of Missouri Extension frost probability data. Dates indicate 50% probability of last or first 32°F occurrence. Monitor your 10-day forecast for transplant timing decisions — Missouri’s spring weather is notoriously unpredictable.
A critical note for northern Missouri gardeners: the last frost dates above reflect the average year. Missouri’s spring weather regularly produces late cold snaps — a hard frost on May 5 is not unusual in Columbia or St. Joseph and has occurred as late as May 12 in northern counties. University of Missouri Extension recommends keeping frost cloth available through mid-May for warm-season transplants in zones 5b–6a.
Spring Planting in Missouri
Spring is Missouri’s primary warm-season planting window. Its timing spans five to six weeks across the state — from the Bootheel’s late March opening to northern Missouri’s late April or early May start. Getting this timing right is the most consequential decision in a Missouri garden year. Understanding seasonal planting timing across US growing zones helps clarify why Missouri’s variable spring demands a more cautious approach than gardeners in more predictable climates.
March: Bootheel and Southeast Missouri Spring Begins
In the Bootheel (zone 7a), March is when the main warm-season vegetable season can begin in earnest. Average last frost falls in late March for Sikeston and Hayti, allowing direct sowing of warm-season crops from late March onwards in favorable years.
- Start cool-season crops outdoors from early March: lettuce, spinach, arugula, kale, radishes, and peas are all frost-tolerant and perform best in cool spring soil temperatures of 45–65°F.
- Transplant broccoli, cabbage, and cauliflower starts outdoors after the last hard freeze risk. Southeast Missouri’s long season allows multiple succession plantings of fast crops like radishes and lettuce through spring.
- Start warm-season transplants indoors: tomatoes 6–8 weeks before last frost, peppers 8–10 weeks before last frost. In the Bootheel, this means starting tomato seeds indoors in late January for late March transplanting.
April: Central Missouri and St. Louis Spring Window
The majority of Missouri gardeners — those in Kansas City, Columbia, St. Louis, Jefferson City, and Springfield — have their primary spring planting window in April. This is the busiest month in the Missouri garden year.
- Direct sow cool-season crops outdoors from early April throughout zones 6a–6b: peas (which need cool soil to germinate), carrots, beets, turnips, spinach, and lettuce all go in the ground as soon as the soil can be worked. Missouri’s spring clay soil needs to be workable but not waterlogged — working wet clay causes compaction that can last the entire season.
- Transplant brassicas (broccoli, cabbage, cauliflower, Brussels sprouts) outdoors in early-to-mid April in central Missouri. These can tolerate light frost once established but need protection if temperatures drop below 28°F.
- From mid-April in zone 6b (St. Louis, Springfield, Joplin) and late April in zone 6a (Kansas City, Columbia), transplant frost-sensitive warm-season crops: tomatoes, peppers, eggplant, cucumbers, squash, and beans. Watch the extended forecast carefully — a night below 35°F after transplanting can set back pepper plants significantly.
- Plant potatoes when soil temperature consistently reaches 45°F, typically early-to-mid April in central Missouri. University of Missouri Extension recommends Certified disease-free seed potato stock rather than grocery store potatoes to avoid introducing late blight.
May: Northern Missouri Season Opens
Northern Missouri gardeners in zone 5b (Kirksville, Macon, and Milan) have one of the latest spring frost windows in the state. Last frost risk lingers into early May, and many experienced local gardeners wait until May 10–15 before transplanting tomatoes and peppers outdoors without protection.
- Transplant all warm-season crops outdoors after May 1 in most of zone 5b, or after May 10 if frost-sensitive crops like peppers and basil are in the plan. Row cover extended for the first two weeks after transplanting gives significant protection against unexpected late cold snaps.
- Direct sow beans, squash, cucumbers, and corn from May 1 onwards in northern Missouri once soil temperature consistently reaches 60°F. Corn especially germinates poorly below this threshold and often rots rather than sprouts.
- Consider companion planting combinations from the start of the season — pairing marigolds with tomatoes and peppers, or basil alongside tomatoes, provides pest deterrence throughout Missouri’s long aphid and hornworm season and makes the most of every bed in the ground.
Summer in Missouri: Heat, Humidity, and What Thrives
Missouri summers are genuinely challenging for vegetable production. Average July highs across much of the state reach 88–92°F, with humidity levels that make effective air temperatures feel significantly higher. Kansas City and St. Louis regularly record heat index values above 100°F during July and August. This combination of heat and humidity creates conditions that suppress flower set on tomatoes and peppers, accelerates bolting in cool-season crops, and drives fungal disease pressure across the entire garden.
Tomatoes stop setting fruit when night temperatures remain above 75°F or when daytime temperatures exceed 95°F — a threshold Missouri routinely crosses during July and August heat waves. Peppers tolerate heat better but can drop blossoms during the most intense hot spells. This is not crop failure; it is normal Missouri summer behavior. Plants that appear unproductive during peak July heat often recover significantly and resume fruiting once temperatures moderate in late August and September.
What Grows Well Through Missouri Summers
- Sweet corn — Missouri’s summer heat suits sweet corn perfectly. Plant from late May through late June for harvests from late July through September. Succession planting every 2–3 weeks extends harvest significantly.
- Okra — thrives above 85°F and produces prolifically throughout Missouri’s hot months. Harvest every 2–3 days to keep pods tender; mature pods toughen quickly in summer heat.
- Sweet potatoes — an excellent Missouri summer crop. Plant slips from late May through mid-June after soil has thoroughly warmed; harvest after 90–110 days in fall.
- Basil — genuinely thrives in Missouri summers when kept well-watered. Pinch flower buds regularly to maintain leaf production. Missouri’s humidity makes basil somewhat susceptible to Fusarium wilt — improve air circulation and avoid overhead watering.
- Cucumbers and summer squash — highly productive through Missouri summers when water is consistent. Powdery mildew is common on older leaves by midsummer; it is cosmetically unpleasant but does not end production in most seasons.
- Eggplant — one of Missouri’s best summer performers. Thrives in heat, rarely drops fruit, and produces from midsummer through frost. Missouri Extension particularly recommends eggplant for gardeners frustrated by summer tomato production losses.
Fall Planting in Missouri: The Second Season
Missouri’s fall season is arguably its most reliable and most underused growing window. As temperatures moderate from late August onwards and the pressure of summer heat eases, cool-season crops planted in late summer produce some of their best harvests. Broccoli, kale, and root vegetables planted for fall harvest consistently develop better flavor than their spring counterparts — the gradual cooling of late September and October sweetens root vegetables and mellows kale’s bitterness.
Calculating your fall planting dates requires working backward from your expected first fall frost date. Add the days to maturity for any given crop, plus 2 weeks to account for shorter days and slower growth as fall progresses, and count backward from your frost date to find the latest safe direct sowing date. This “frost date minus days to maturity minus 14 days” formula is standard University of Missouri Extension guidance for fall planting calculations. As understanding of climate zone migration and shifting growing windows improves, Missouri gardeners may find fall seasons extending further into November in coming decades.
August: Begin Fall Planting
- Start broccoli, cabbage, cauliflower, and Brussels sprouts transplants indoors from mid-July to early August. These need 4–6 weeks of indoor growing before transplanting outdoors in late August. Fall brassicas are among the most reliable Missouri crops — they benefit from the cooling autumn temperatures and often produce better heads than spring plantings.
- Direct sow kale and Swiss chard outdoors from mid-August. Both are frost-tolerant and can be harvested into November and beyond with light protection. Kale flavor improves noticeably after the first light frosts of autumn.
- In the Bootheel and southern Missouri (zone 6b–7a), a second planting of bush beans in early August can produce a late-season harvest before first frost. Beans need 50–55 days and cannot tolerate frost, so timing is tighter in more northern regions.
September: Peak Fall Planting Month
- Direct sow cool-season greens from early September in all zones: lettuce, spinach, arugula, mustard greens, and radishes germinate quickly in still-warm September soil and produce harvests well into November. Succession sow every 2 weeks for continuous harvest.
- Transplant fall brassicas outdoors in early September throughout most of Missouri. Plants started indoors in mid-July should be ready for the garden by the first week of September.
- Sow carrots and beets directly where they will grow from late August through mid-September. These root vegetables need 60–75 days and must go in before soil temperatures drop below 50°F for reliable germination. Carrots left in the ground after a light frost develop noticeably sweeter flavor — a reliable Missouri fall payoff.
- Plant garlic from late September through October in all Missouri zones. Garlic planted in fall establishes roots before the ground freezes, then resumes growth in spring for a June harvest. Hardneck varieties (Rocambole, Purple Stripe, Porcelain types) perform well throughout Missouri and offer more complex flavor than softnecks.
Missouri Month-by-Month Planting Calendar
This calendar covers three reference zones: Northern Missouri (Zone 5b–6a: Kirksville, St. Joseph), Central/Urban (Zone 6a–6b: Kansas City, Columbia, St. Louis), and Southern Missouri/Bootheel (Zone 6b–7a: Springfield, Cape Girardeau).
| Month | Northern Missouri (Zones 5b–6a) | Central / St. Louis (Zones 6a–6b) | Southern MO / Bootheel (Zones 6b–7a) |
|---|---|---|---|
| January | Plan and order seeds; start onion transplants indoors late January; review last year’s notes | Start onion transplants indoors; plan garden layout; order seeds; prepare beds once thaw allows | Start onion and broccoli transplants indoors; prepare soil if ground thaws; order seeds |
| February | Start tomatoes and peppers indoors 8–10 weeks before last frost; prepare beds for early direct sowing | Start tomatoes, peppers, eggplant indoors; direct sow peas and spinach under cold frame | Start tomatoes and peppers indoors; direct sow peas, spinach, and kale outdoors mid-Feb |
| March | Direct sow peas, spinach, and kale outdoors late March; start brassica transplants indoors | Direct sow cool-season crops outdoors: peas, lettuce, carrots, beets; transplant brassicas late March | Transplant broccoli and cabbage outdoors early March; direct sow warm-season crops late March (Bootheel) |
| April | Direct sow cool-season crops from early April; transplant brassicas mid-April; warm-season transplants late April | Full spring planting: warm-season transplants mid-to-late April; direct sow beans, squash, cucumbers late April | Full warm-season planting: tomatoes, peppers, squash, beans, cucumbers; plant potatoes; sow corn |
| May | Transplant frost-sensitive crops (peppers, basil) after May 10; direct sow beans, squash, corn, cucumbers | Finish spring planting; succession sow beans and lettuce; plant sweet potatoes; harden off late transplants | Plant sweet potato slips; succession sow beans and lettuce; plant summer herbs; monitor for spring pests |
| June | Full warm-season growing; plant okra and sweet potatoes; succession sow beans; apply mulch before heat arrives | Succession sow beans and cucumbers; plant sweet potatoes; apply 3–4 inch mulch; monitor water during heat | Succession sow okra and beans; harvest spring crops before heat peaks; apply mulch; deep irrigation |
| July | Harvest and water management; succession sow short-season crops; start planning fall garden; apply compost to empty beds | Harvest intensive month; start fall brassica transplants indoors mid-July; succession sow radishes, carrots | Start fall brassica transplants indoors; harvest summer crops; prepare fall beds; plant late summer beans early July |
| August | Start fall brassica transplants indoors early August; direct sow kale, Swiss chard, and lettuce from mid-August | Transplant fall brassicas outdoors late August; direct sow fall greens; sow fall carrots and beets | Transplant fall brassicas outdoors early August; full fall direct sowing underway; plant fall lettuce and spinach |
| September | Full fall planting: transplant brassicas early Sept; sow greens, radishes, carrots; plant garlic late Sept | Peak fall season: harvest and succession sow greens; plant garlic; harvest early sweet potatoes | Harvest and succession sow; garlic planting from late September; harvest sweet potatoes; start storing root vegetables |
| October | Garlic planting through Oct 15; harvest before first frost; mulch garlic beds; clean and prepare empty beds | Continue garlic planting; harvest fall crops; plant spring bulbs; mulch garlic; prepare beds for winter | Harvest intensive month; succession sow cold-hardy greens; plant spring bulbs; garlic planting continues |
| November | Beds mulched and resting; harvest frost-sweetened kale and carrots before hard freeze; record notes for next year | Harvest cold-hardy greens under cover; beds mulched; order seed catalogs; prepare greenhouse or cold frames | Harvest cold-hardy crops through mid-November; plant cool-season greens under cover; plan winter garden |
| December | Dormant season; plan next year’s garden; order seeds from specialty suppliers; review what worked | Plan and order seeds; start some onion transplants indoors late December; organize saved seed | Plant cool-season greens under cover; plan spring; start transplants for early spring planting late December |
Top Plants for Missouri Gardens
Missouri’s climate supports a wide range of vegetables and ornamentals, but variety selection matters significantly. Heat and humidity tolerance for summer crops, and cold hardiness ratings for perennials and overwintering crops, are both worth checking before purchasing plants. The table below covers the most reliable performers across Missouri’s growing conditions.
| Plant | Best Varieties for Missouri | Season | Region | Key Notes |
|---|---|---|---|---|
| Tomato | Celebrity, Better Boy, Mountain Merit, Brandywine (heirloom) | Spring–Fall | All | Most productive in June and September–October; production drops during peak July heat; stake or cage all varieties |
| Pepper | California Wonder, Cubanelle, Hungarian Hot Wax, Cajun Belle | Summer | All | Missouri’s warm summers favor excellent pepper production; plant starts after soil reaches 65°F |
| Sweet Corn | Silver Queen, Peaches and Cream, Ambrosia, Kandy Korn | Summer | All | Plant in blocks of 4+ rows for pollination; succession plant every 2–3 weeks; coon exclusion recommended |
| Eggplant | Black Beauty, Ichiban, Ping Tung Long, Rosa Bianca | Summer | All | Missouri’s best summer vegetable; thrives in heat, rarely drops fruit; most productive in July–August |
| Okra | Clemson Spineless, Cowhorn, Jambalaya, Jade | Summer | All | Loves Missouri heat; harvest every 2–3 days; excellent succession crop when spring vegetables finish |
| Broccoli | Arcadia, Belstar, Diplomat, Calabrese | Spring & Fall | All | Fall broccoli often outperforms spring in flavor and head size; plant transplants in August for October harvest |
| Kale | Lacinato (Dino), Red Russian, Winterbor, Redbor | Fall–Winter | All | Sweetens dramatically after frost; overwinters under light cover in zones 6b–7a; one of Missouri’s best fall crops |
| Green Bean | Blue Lake 274, Provider, Kentucky Wonder, Dragon Tongue | Summer | All | Succession sow every 2–3 weeks from mid-April through July; Provider has exceptional heat and disease tolerance |
| Carrot | Chantenay Red Core, Danvers 126, Nantes Half Long, Bolero | Spring & Fall | All | Fall carrots sweetened by frost are notably better than spring; sow directly, never transplant; grow in loose amended soil |
| Garlic | Music (hardneck), Russian Red (hardneck), German White (hardneck) | Fall planting, summer harvest | All | Plant October–November; harvest June–July; hardneck varieties excel in Missouri’s cold winters; excellent for long storage |
| Peony | Sarah Bernhardt, Festiva Maxima, Karl Rosenfield, Coral Charm | Spring bloom | Zones 5b–6b (all northern and central) | Missouri’s climate is ideal for peonies; requires cold vernalization most zones provide naturally; extremely long-lived perennial |
| Black-Eyed Susan | Goldsturm, Prairie Sun, Indian Summer | Summer–Fall | All | Missouri native prairie plant; drought tolerant once established; excellent for pollinators; naturalizes well in Midwest conditions |
| Coneflower (Echinacea) | Magnus, Kim’s Knee High, Ruby Star, White Swan | Summer–Fall | All | Missouri native; thrives in heat and humidity; attracts goldfinches to seed heads in fall; extremely low maintenance once established |
| Switchgrass | Shenandoah, Dallas Blues, Heavy Metal | Summer–Fall foliage | All | Missouri native prairie grass; spectacular fall color; drought tolerant; provides winter structure and bird habitat; virtually pest-free |
Common Missouri Gardening Challenges
Late Spring Frost Risk
Missouri’s spring frosts are deceptive because warm spells in late March and early April create genuine planting pressure. After a week of 70°F days, a hard frost on April 20 catches transplants that went in too early. University of Missouri Extension documents that late-season freezes below 32°F have occurred in Columbia as late as May 12 and in Kansas City as late as May 5 in recent decades.
The most effective protection strategy for Missouri gardeners is two-part: delay frost-sensitive transplants until the ground has been consistently warm for at least a week (soil temperature at 4 inches consistently above 60°F), and keep frost cloth available through mid-May for established transplants. A single layer of lightweight row cover raises ambient temperature around plants by 3–5°F — enough to protect transplants down to 27–28°F on cold nights.
Summer Heat and Humidity Stress
Missouri’s combination of high temperatures and high humidity creates a disease environment uncommon in drier Midwest states like Kansas and Nebraska. Fungal diseases — powdery mildew, early blight, septoria leaf spot, and downy mildew — are common throughout the state’s summer months and become severe in wet summers. Most years, tomato plants in Missouri show significant early blight on lower leaves by mid-July.
Three practices make the most difference for disease management. First, mulch all vegetable beds with 3–4 inches of straw or shredded leaves — this prevents soil splash that spreads blight and conserves moisture during hot spells. Second, provide consistent water through drip irrigation or deep infrequent overhead watering rather than daily light watering; consistent moisture reduces blossom drop and cracking in tomatoes. Third, choose disease-resistant tomato varieties from the start — Celebrity, Mountain Merit, and Jasper cherry tomato carry resistance to early blight, septoria, and Fusarium wilt that reduces management burden significantly through Missouri summers.
Heavy Clay and Variable Drainage
Much of Missouri’s native soil is clay-heavy, particularly in central and northern regions where glacial deposits created tight, slow-draining soils. Clay soil presents two opposite problems: it becomes compacted when worked wet in spring, and it bakes hard and cracks when dry in summer. Neither condition suits vegetable root development.
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→ View My Garden CalendarUniversity of Missouri Extension recommends a long-term soil amendment approach: add 2–3 inches of compost to clay soil each year, tilling lightly in fall and spring to gradually improve structure. Over 3–5 years, this creates a genuinely productive growing medium from poorly draining clay. For immediate results, raised beds filled with a mixture of topsoil, compost, and coarse sand sidestep clay problems entirely and warm faster in spring — a meaningful advantage in zones 5b and 6a where soil temperature often lags air temperature by two weeks in the spring. Work clay soil only when it passes the squeeze test: a handful squeezed should crumble rather than hold a cohesive ball.
Frequently Asked Questions About Missouri Gardening
When should I start a vegetable garden in Missouri?
In the Bootheel (Cape Girardeau, Sikeston), cool-season planting starts in early March and warm-season planting begins in late March. In central Missouri (Kansas City, Columbia, St. Louis), cool-season crops go outdoors in March and warm-season transplants can be set out from mid-to-late April after last frost risk diminishes. In northern Missouri (Kirksville, St. Joseph), warm-season transplanting is safest after May 1, with frost cloth kept available through May 10–15 for cold-sensitive crops like peppers and basil.
What vegetables are easiest to grow in Missouri?
Green beans are consistently Missouri’s most forgiving vegetable — direct sown, highly productive, and well-adapted to the state’s summer heat. Zucchini and yellow squash produce abundantly through Missouri summers with minimal care. Kale, Swiss chard, and broccoli thrive in spring and fall. For summer ornamental and food production, eggplant handles Missouri heat better than almost any other vegetable and rarely requires intervention. Native plants like black-eyed Susan, coneflower, and switchgrass need almost no maintenance once established in Missouri’s climate.
Can I grow tomatoes in Missouri’s heat?
Yes, but realistic expectations matter. Missouri tomatoes produce well in June and in September–October. During peak July and August heat, blossom set typically slows or stops on standard varieties when nights stay above 75°F. This is normal and temporary — plants generally resume flowering and setting fruit once August temperatures moderate. Heat-tolerant varieties like Heatmaster and Sweet 100 cherry tomatoes maintain better summer production. Consistent watering and a heavy mulch layer are the two most effective strategies for supporting summer tomato production in Missouri conditions.
What should I plant in Missouri for fall?
Missouri’s fall garden is one of the most productive windows in the state. Broccoli transplants started in late July and set out in late August produce excellent heads by October. Kale direct sown in August can be harvested from September through November and into December in southern Missouri. Carrots sown in August develop sweeter flavor after light frosts. Garlic planted in October establishes before winter and produces a reliable June harvest. Succession plantings of lettuce, spinach, arugula, and radishes from September through early October extend fresh greens well into the fall months.
