When To Plant Cilantro In Missouri

The best time to plant cilantro in Missouri is in early spring or early fall, depending on whether you’re growing it for leaves or seeds.
 
Cilantro is a cool-season herb, which means it thrives when temperatures are mild and struggles when the heat cranks up.
 
If you’ve been wondering when to plant cilantro in Missouri, the short answer is that Missouri’s climate gives you two solid windows: spring and fall.
 
Missouri sits in a transition zone between USDA hardiness zones 5b and 7a, so planting cilantro here requires a bit of timing finesse.
 
In this post, we’ll walk through exactly when to plant cilantro in Missouri, how to keep it from bolting too fast, and the best techniques for a continuous harvest.
 
Let’s dig in.
 

When to Plant Cilantro in Missouri

Cilantro grows best when soil temperatures are between 55°F and 70°F, and Missouri’s spring and fall seasons hit that sweet spot perfectly.
 
Here’s how to time your planting across the state’s growing seasons.
 

1. Early Spring Planting (March to April)

For most of Missouri, you can plant cilantro seeds directly in the garden from mid-March through April.
 
Cilantro seeds germinate well when soil temps are around 55°F to 68°F.
 
In southern Missouri, you might get away with planting as early as late February or the first week of March.
 
In northern Missouri, aim for late March to mid-April to avoid a late frost killing your seedlings.
 
Cilantro can handle a light frost, but a hard freeze will set it back.
 

2. Fall Planting (August to September)

Fall is actually the best time to plant cilantro in Missouri if you want lush, leafy harvests.
 
By late August or early September, the brutal summer heat has passed, and cilantro can grow without bolting immediately.
 
Plant your cilantro seeds about 6 to 8 weeks before your first expected fall frost.
 
In Missouri, that first frost usually arrives between mid-October and early November.
 
So a late August to mid-September planting date gives your cilantro plenty of time to establish.
 
Fall-planted cilantro often produces the tastiest, most tender leaves of the year.
 

3. Succession Planting for a Longer Harvest

Since cilantro bolts quickly once the heat arrives, succession planting is your best friend in Missouri.
 
Instead of planting one big patch, sow small batches of cilantro every 2 to 3 weeks during cool weather.
 
Start your first round in early spring (March), then sow again in April and again in late summer.
 
This staggered approach means when to plant cilantro in Missouri stops being a single date and becomes a season-long strategy.
 

Why Timing Matters for Cilantro in Missouri

Missouri’s weather swings hard, and cilantro is sensitive to both heat and cold.
 
Understanding why timing matters helps you plan smarter.
 

1. Cilantro Bolts in Hot Weather

Once temperatures climb above 75°F consistently, cilantro sends up a flower stalk and stops producing leaves.
 
Missouri summers easily hit the 90s, so a cilantro plant started in late May will bolt within weeks.
 
That’s why spring and fall are the only truly reliable windows for leaf harvest here.
 

2. Cilantro Is Cold-Hardy but Not Bulletproof

Cilantro can survive light frosts down to about 20°F, especially once established.
 
But young seedlings are more vulnerable.
 
If you plant cilantro too early in Missouri and a hard freeze rolls through, you may lose your crop.
 
A row cover or cold frame can protect early plantings.
 

3. Soil Temperature Drives Germination

Cilantro seeds won’t germinate well in cold, soggy soil or in scorching summer dirt.
 
The ideal soil temperature for germination is around 55°F to 68°F.
 
That’s another reason early spring and early fall are the go-to windows for planting cilantro in Missouri.
 

Tips for Growing Cilantro in Missouri

Once you know when to plant cilantro in Missouri, a few extra tricks will help you get the most from your crop.
 

1. Choose the Right Spot

Cilantro prefers full sun in spring and fall, but in Missouri’s heat, a little afternoon shade goes a long way.
 
Plant in a spot that gets morning sun and some protection from the harsh afternoon rays.
 

2. Sow Seeds Directly

Cilantro doesn’t transplant well because of its taproot.
 
Sow seeds directly into the garden about ¼ inch deep and keep the soil consistently moist.
 
You can also soak seeds overnight to speed up germination.
 

3. Water Consistently

Dry soil stresses cilantro and makes it bolt faster.
 
Aim for about an inch of water per week, and mulch around plants to keep soil cool.
 

4. Harvest Often

Regular harvesting encourages cilantro to keep producing new leaves.
 
Snip outer stems first and leave the center to grow.
 
If you want coriander seeds, let a few plants flower and go to seed in late spring.
 

So, When to Plant Cilantro in Missouri?

You should plant cilantro in Missouri in early spring (March to April) and again in late summer to early fall (August to September).
 
Those two windows give cilantro the cool temperatures it needs to thrive without bolting.
 
Succession planting every few weeks keeps a steady supply coming.
 
Whether you’re in St. Louis, Kansas City, Springfield, or a small town in between, timing your cilantro plantings around Missouri’s mild seasons is the key to a healthy harvest.
 
Happy planting.