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The best time to plant mustard greens in Mississippi is in the early spring or early fall.
You have two distinct windows for when to plant mustard greens in Mississippi, and both depend on avoiding the extreme heat of summer.
Understanding when to plant mustard greens in Mississippi is the key to a successful, leafy harvest that doesn’t bolt or turn bitter.
If you plant mustard greens in Mississippi during the right season, you’ll get tender, spicy leaves that thrive in the state’s mild winters.
Let’s walk through the exact timing, soil conditions, and varieties so you can nail the perfect planting schedule.
When to Plant Mustard Greens in Mississippi: The Two Big Windows
Mustard greens are a cool-season crop, which means they love temperatures between 45°F and 75°F.
In Mississippi, that gives you a fantastic spring window and an even better fall window for planting mustard greens.
Here’s the breakdown of when to plant mustard greens in Mississippi for each season.
1. Spring Planting Window
For the spring, you should plant mustard greens in Mississippi about 4 to 6 weeks before the last expected frost.
Most of Mississippi’s last frost date falls between late March and mid-April, depending on whether you’re in the northern or southern part of the state.
So, for northern Mississippi, that means planting mustard greens in late February or early March.
For central Mississippi, you can plant mustard greens in early March, and for the southern Gulf Coast region, you can start as early as mid-February.
The beauty of planting mustard greens in Mississippi in the spring is that they’ll mature before the heat arrives in late May.
If you plant mustard greens too late in the spring, the hot weather will cause them to bolt, which means they’ll flower and turn incredibly bitter.
2. Fall Planting Window
The fall is actually the preferred time for when to plant mustard greens in Mississippi, and that’s because the cooler temperatures make the leaves sweeter.
You should plant mustard greens in Mississippi about 6 to 8 weeks before the first expected frost.
Mississippi’s first frost typically arrives between late October and mid-November.
So, you’ll want to plant mustard greens in Mississippi in early September for northern areas, mid-September for central areas, and late September to early October for the southern coast.
Fall planting is ideal because the plants grow slowly in the cooler weather, which builds up natural sugars for a milder, less peppery flavor.
Plus, mustard greens can tolerate a light frost, so you can keep harvesting well into December.
Key Factors That Affect When to Plant Mustard Greens in Mississippi
Beyond just the calendar dates, a few other factors will shift the exact date for when to plant mustard greens in Mississippi.
Paying attention to these details will help you get the timing just right.
1. Your Specific Zone in Mississippi
Mississippi spans USDA hardiness zones 7a in the north to 9a in the south.
If you live in the northern zone 7, your planting dates are slightly later in the spring and earlier in the fall.
If you’re in zone 9 near the coast, you can plant mustard greens a bit earlier in the spring and later in the fall.
So, when you’re asking when to plant mustard greens in Mississippi, always check your local county extension office for zone-specific frost dates.
2. Soil Temperature Matters
Mustard greens actually germinate best when the soil temperature is between 50°F and 75°F.
If you plant mustard greens in Mississippi when the soil is still too cold (below 40°F), the seeds will rot in the ground.
And if the soil is too warm (above 80°F), germination will stall completely.
You can use a simple soil thermometer to check the temperature before you sow your seeds.
This is one of the most reliable ways to know when to plant mustard greens in Mississippi.
3. Direct Sowing vs. Transplants
Mustard greens are incredibly easy to direct sow, and that’s the best way to plant mustard greens in Mississippi.
You can also start seeds indoors about 4 weeks before your intended planting date if you want a head start.
But honestly, direct sowing works great because mustard greens germinate quickly in about 5 to 10 days.
Just plant the seeds about ¼ inch deep and keep the soil consistently moist until the seedlings appear.
How to Plant Mustard Greens in Mississippi for the Best Harvest
Once you’ve figured out when to plant mustard greens in Mississippi, the next step is getting them in the ground correctly.
Here are the steps to follow for a healthy patch of mustard greens.
1. Choose the Right Location
Mustard greens love full sun, so pick a spot that gets at least 6 hours of direct sunlight per day.
In the fall, you might actually appreciate a spot with a little afternoon shade to keep them from getting too stressed during the warmer September days.
The soil should be rich, well-draining, and high in organic matter.
If your Mississippi soil is heavy clay, work in some compost or aged manure before you plant.
2. Spacing and Thinning
When you plant mustard greens in Mississippi, sow the seeds about 1 inch apart in rows that are 12 to 18 inches apart.
Once the seedlings have two sets of true leaves, thin them to about 6 inches apart.
If you’re growing them for baby greens, you can just scatter the seeds and harvest them when they’re small.
But for full-sized bunches, giving them space is crucial for good airflow and bigger leaves.
3. Watering and Mulching
Mustard greens need consistent moisture to stay tender.
Aim for about 1 inch of water per week, and more if it’s been dry.
Definitely mulch around the plants with straw or shredded leaves to keep the soil cool and retain moisture.
This is especially important if you plant mustard greens in Mississippi during the early fall when the sun can still be intense.
Best Mustard Green Varieties for Mississippi
Choosing the right variety can also influence when to plant mustard greens in Mississippi.
Some varieties are more heat-tolerant, while others are better for cold weather.
1. Southern Giant Curled
This is the classic Mississippi variety, and it’s perfect for both spring and fall planting.
It’s slow to bolt, which means it gives you a longer harvest window before the summer heat kicks in.
2. Florida Broadleaf
This variety is excellent for the southern part of the state because it’s more heat-resistant.
If you missed your ideal spring window, this one can handle slightly warmer conditions a bit better than others.
3. Red Giant
Red Giant is a gorgeous variety with deep purple-red leaves that add a nice kick to salads.
It’s very cold-hardy, so it’s a great choice for the fall planting window in Mississippi.
You can even plant it a bit later in the fall because it can take a frost very well.
So, When to Plant Mustard Greens in Mississippi?
When to plant mustard greens in Mississippi comes down to two simple windows: early spring (late February to mid-March) and early fall (early September to early October).
Planting mustard greens in Mississippi during these times ensures they get the cool weather they love.
So, if you’re ready to grow your own, mark your calendar for those exact dates and get your soil ready.
You’ll be enjoying fresh, spicy mustard greens in just a few short weeks.
Happy planting, and I hope you have a bumper crop!