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The best time to plant parsley in Missouri is in early spring, about two to four weeks before the last expected frost.
If you’ve been wondering when to plant parsley in Missouri, the answer really hinges on your specific region within the state and whether you’re starting from seed or using transplants.
Missouri’s climate ranges from USDA zones 5b in the north to 7b in the south, so the exact planting window can shift by a couple of weeks depending on where you live.
In this post, we’ll break down the ideal timing for planting parsley in Missouri, how to handle the fall planting window, and some practical tips to get the most out of your parsley patch.
Let’s dig into the details so your parsley thrives in the Show-Me State.
When to Plant Parsley in Missouri: The Spring Window
When to plant parsley in Missouri comes down to soil temperature and frost dates, and spring is your primary window.
Parsley is a cool-season biennial that actually prefers cooler weather, which is why early spring works so well here.
1. Aim for Late March to Mid-April
For most of Missouri, the last frost date falls between April 10 and April 20 in the southern half, and as late as April 25 in northern areas.
You’ll want to plant parsley in Missouri about two to four weeks before that date, so think late March into early April.
Parsley seeds can handle light frosts, and the soil just needs to be workable and around 40°F to 50°F for germination to begin.
If you’re in the southern part of the state, you can often get away with planting in mid-March, while northern gardeners should wait until early April.
2. Starting Seeds Indoors First
If you want to get a head start, you can start parsley seeds indoors about six to eight weeks before that last frost date.
This means starting seeds in late January or February for most of Missouri, which is a great way to ensure strong plants by the time you’re ready to plant parsley in Missouri outdoors.
Harden off the seedlings for about a week before transplanting, gradually exposing them to outdoor conditions.
3. Soil Temperature Matters for Germination
Parsley seeds are notoriously slow to germinate, often taking two to four weeks, so soil temperature is a bigger deal than air temperature.
If the soil is below 40°F, the seeds will just sit there, so you’re better off waiting until the ground warms up a bit.
You can use a soil thermometer to check, and once the soil reads at least 50°F, that’s your sign to plant parsley in Missouri.
When to Plant Parsley in Missouri for a Fall Harvest
You don’t have to limit yourself to spring, because fall is actually a fantastic time to plant parsley in Missouri too.
Parsley loves the cooler autumn weather, and the flavor often gets even better as temperatures drop.
1. Plant in Late Summer for Fall Crops
To harvest parsley in the fall, you’ll want to plant parsley in Missouri about eight to ten weeks before the first expected fall frost, which is usually around mid-October for most of the state.
So that puts your planting window from late July to mid-August.
The summer heat can be tough on young parsley, so try to plant in a spot that gets some afternoon shade or keep the soil consistently moist.
2. Succession Planting Keeps You Supplied
Instead of planting all your seeds at once, try doing a small sowing every two to three weeks during the spring and late summer.
This way, you’ll have a continuous supply of fresh parsley rather than a big glut all at once.
Each time you plant parsley in Missouri with succession sowing, you extend your harvest window by weeks.
Best Conditions for Planting Parsley in Missouri
Timing is key, but you also need to give your parsley the right growing conditions to really succeed.
Whether you’re planting in spring or fall, these basics will help your parsley thrive.
1. Choose the Right Location
Parsley prefers full sun, but in Missouri’s hot summers, a little afternoon shade can prevent the leaves from scorching.
A spot that gets six to eight hours of morning sun with some afternoon protection is ideal.
2. Amend Your Soil Well
Parsley likes rich, well-draining soil with plenty of organic matter.
Before you plant parsley in Missouri, mix in some compost or aged manure to give the plants a nutrient boost.
Aim for a soil pH between 6.0 and 7.0, which is typical for most Missouri gardens anyway.
3. Keep the Soil Evenly Moist
Parsley has shallow roots, so it dries out quickly, especially during those hot Missouri summers.
Water consistently to keep the soil moist but not waterlogged, and add a layer of mulch to help retain moisture.
A consistent watering schedule is one of the most important things you can do after you plant parsley in Missouri.
So, When to Plant Parsley in Missouri?
The best time to plant parsley in Missouri is in early spring, about two to four weeks before the last expected frost, which typically means late March to mid-April.
You can also plant parsley in Missouri in late summer, from late July to mid-August, for a tasty fall harvest.
Both windows give your parsley the cool conditions it loves, and with the right soil prep and watering, you’ll have plenty of fresh, flavorful leaves all season long.
Hope this guide helps you nail the perfect timing for planting parsley in Missouri and enjoy a bountiful harvest.