When to Plant Garlic in Oklahoma: A Complete Growing Guide

Garlic on fence before the storm

Missouri is a fantastic state for growing garlic. Sitting squarely in the middle of the country, the Show-Me State offers a wide range of growing conditions — from the rolling Ozark highlands to the rich river bottomlands of the Missouri and Mississippi valleys. With the right variety and timing, Missouri gardeners can grow exceptional garlic in some of the most fertile soil in the country.

Missouri's Garlic Growing Zones

  • Northern Missouri (Kirksville, Macon, Chillicothe): Zones 5b–6a. Cold winters with reliable frost — hardneck, softneck, and Creole varieties all perform well here.
  • Central Missouri (Columbia, Jefferson City, Sedalia): Zones 6a–6b. Moderate winters — excellent conditions for hardneck and softneck varieties.
  • Kansas City Metro and Western Missouri: Zones 6a–6b. Similar to Central Missouri — hardnecks and softnecks both thrive.
  • St. Louis Metro and Eastern Missouri: Zones 6b–7a. Slightly milder winters — hardneck and softneck varieties perform well, with Creoles also viable in the warmer pockets.
  • Southern Missouri and the Ozarks (Springfield, Joplin, Poplar Bluff): Zones 6b–7a. Mild winters with occasional hard freezes — softneck and Creole varieties are most reliable, with hardnecks viable in the higher elevations.

When to Plant Garlic in Missouri

  • Northern Missouri (zones 5b–6a): October 1–October 25
  • Central Missouri and Kansas City (zones 6a–6b): October 5–November 1
  • St. Louis and Eastern Missouri (zones 6b–7a): October 10–November 5
  • Southern Missouri and the Ozarks (zones 6b–7a): October 10–November 5

Plant when soil temperatures drop to 60–65°F. Missouri's falls can be warm through September and into October — don't rush planting. The goal is to get roots established before the ground freezes, with just a little green top growth emerging before winter sets in.

The Best Garlic for Missouri

Missouri's climate is one of the most versatile in the country for garlic — cold enough in the north for excellent hardneck production, and mild enough in the south for Creoles and softnecks to shine. Most Missouri gardeners can grow a wide range of varieties successfully.

Hardneck Varieties (Excellent Across Missouri, zones 3–8)

  • Persian Star — Asiatic hardneck, zones 3–8, stunning purple-striped wrappers and rich, complex flavor. A beautiful and reliable performer across Missouri's colder northern and central regions.
  • Korean Red — Glazed Purple Stripe hardneck, zones 3–8, bold and spicy with a deep robust flavor that mellows beautifully when roasted. Thrives in Missouri's cold winters and produces large, impressive bulbs.
  • Russian Red — Marbled Purple Stripe hardneck, zones 3–8, rich and full-flavored with beautiful deep purple marbling on the wrappers. One of the most cold-hardy varieties we carry and an outstanding performer in Missouri's northern and central regions. A true heirloom with exceptional character.

Creole Varieties (Great for Southern Missouri)

  • Morado — Our flagship Creole variety. Spanish Creole, zones 6–10, intensely spicy and aromatic with the highest allicin content of any variety we grow. Stunning purple-streaked wrappers, stores 10–12 months. An excellent choice for Southern Missouri and the Ozarks.

Softneck Varieties (Reliable Statewide)

  • Inchelium Red — Artichoke softneck, zones 5–10, taste-test champion with very large bulbs. A dependable performer across all of Missouri.
  • Messedor — French white artichoke softneck, mild and balanced flavor, large uniform bulbs. Excellent storage and adaptability across Missouri's varied climates.
  • Castano — Artichoke softneck, rich and savory flavor, reliable producer. Solid performer statewide.
  • Garcua — Artichoke softneck, mild and versatile with excellent storage. A dependable choice across Missouri.

How to Plant Garlic in Missouri

  1. Prepare your bed: Missouri soils range from the incredibly fertile river bottomlands of the Missouri and Mississippi valleys (outstanding for garlic) to the rocky, well-drained soils of the Ozarks. All benefit from generous compost additions. The Ozark highlands' rocky soils especially benefit from raised beds or deep soil amendment.
  2. Break your bulbs: Separate cloves just before planting. The largest cloves produce the largest bulbs.
  3. Plant depth and spacing: 2 inches deep, pointed end up, 6 inches apart in rows 12 inches apart.
  4. Mulch well: Missouri winters can bring hard freezes, especially in the north. A 4–6 inch layer of straw mulch after planting protects roots and moderates soil temperature through winter.
  5. Spring care: Remove mulch gradually as temperatures warm in March. Apply a nitrogen-rich fertilizer when you see green growth. Stop fertilizing by mid-April to shift energy to bulb development.

Common Garlic Mistakes in Missouri

  • Planting too early: Missouri's September and early October soil is often still too warm. Wait for consistent soil temperatures at or below 65°F.
  • Skipping mulch in Northern Missouri: Hard freezes without mulch can heave garlic out of the ground. Mulch is essential in zones 5b–6a.
  • Poor drainage in bottomland soils: Missouri's rich river bottomlands can hold water. Raised beds or well-amended soil prevent waterlogging during spring rains.

When to Harvest Garlic in Missouri

  • Southern Missouri and the Ozarks (zones 6b–7a): Late June to early July
  • Central Missouri, Kansas City, and St. Louis (zones 6a–6b): Late June to early July
  • Northern Missouri (zones 5b–6a): Early to mid-July

Harvest when about half the leaves have browned and half are still green. Missouri's summer heat and humidity build quickly in June and July — don't wait too long once browning begins.

💡 Pro tip: Always dig a test bulb first! Before pulling your entire crop, dig one bulb and inspect it. The cloves should be plump and well-formed, filling out the wrapper. If they look small or the skin is very tight, give it another week.

Curing and Storing Missouri Garlic

Missouri's summer humidity makes curing conditions tricky. Move harvested garlic immediately to a well-ventilated, shaded space — a barn, covered porch, or garage with a fan works well. Cure for 3–4 weeks with excellent airflow before trimming and storing. Hardneck varieties store 4–6 months; softneck and Creole varieties store 9–12 months.

Ready to Grow Missouri Garlic?

Our seed begins shipping in September — perfectly timed for Missouri's fall planting window. Whether you're gardening in the Ozarks or the Missouri River valley, we have the right variety for your zone.