Your Cool Home is supported by its readers. Please assume all links are affiliate links. If you purchase something from one of our links, we make a small commission from Amazon. Thank you!
The best time to plant cilantro in Maryland is in early spring or early fall.
Cilantro loves cool weather, and Maryland’s climate gives you two solid windows to grow it successfully.
If you plant cilantro in Maryland at the right time, you’ll get tender leaves for salsa, tacos, and soups before the heat makes the plant bolt.
In this post, we’ll break down exactly when to plant cilantro in Maryland, how to time it around frost dates, and how to keep your crop going longer.
Let’s dig in.
When to Plant Cilantro in Maryland
Knowing when to plant cilantro in Maryland comes down to avoiding heat and dodging hard frosts.
Maryland sits in USDA hardiness zones 5b through 8a, so planting dates shift a bit depending on where you live in the state.
Cilantro grows best when soil temperatures are between 55°F and 70°F, and when the air stays cool.
1. Spring Planting
For spring, plant cilantro in Maryland about two to three weeks before your last frost date.
In most of Maryland, that means late March through mid-April.
In colder spots like Western Maryland, aim closer to mid-April.
In warmer areas near the Chesapeake Bay or the Eastern Shore, you can start as early as late March.
2. Fall Planting
Fall is actually the best time to plant cilantro in Maryland if you want a longer harvest.
Plant seeds in late August through mid-September.
The cooler fall temperatures keep cilantro from bolting too fast, so you get more leaves for a longer stretch.
3. Succession Planting
If you want a steady supply, plant cilantro in Maryland every two to three weeks during the cool seasons.
This staggers your harvest so you’re not stuck with one big batch that bolts all at once.
Why Timing Matters When You Plant Cilantro in Maryland
Cilantro is a cool-season herb, and Maryland’s summers get hot fast.
Once temperatures climb above 75°F, cilantro bolts, sending up a flower stalk and turning its leaves bitter.
That’s why when you plant cilantro in Maryland, you want to work around the heat, not into it.
1. Heat Triggers Bolting
Bolting is cilantro’s way of saying, “It’s too hot, I’m out.”
The plant shifts energy from leaf growth to seed production, and the leaves lose their fresh flavor.
Planting early in spring or late in summer helps you harvest before the heat hits.
2. Frost Kills Tender Seedlings
Cilantro can handle a light frost, but a hard freeze will wipe out young plants.
That’s why you shouldn’t plant cilantro in Maryland too early in spring or too late in fall.
3. Day Length Affects Growth
Long summer days push cilantro toward flowering.
When you plant cilantro in Maryland during shorter-day windows, the plant stays in leaf mode longer.
How to Plant Cilantro in Maryland for the Best Results
Once you know when to plant cilantro in Maryland, the next step is getting the planting right.
1. Direct Sow the Seeds
Cilantro doesn’t transplant well because of its taproot.
Sow seeds directly into the garden about a quarter inch deep.
Space them 6 to 8 inches apart so air can move between plants.
2. Pick the Right Spot
Cilantro likes partial shade in Maryland, especially as spring warms up.
A spot that gets morning sun and afternoon shade keeps the plant cooler and delays bolting.
3. Keep the Soil Moist
Consistent moisture helps cilantro grow tender leaves.
Water regularly, but don’t let the soil get soggy.
4. Harvest Often
Frequent harvesting encourages new leaf growth.
Snip outer leaves first, and let the center keep producing.
So, When to Plant Cilantro in Maryland?
The best time to plant cilantro in Maryland is early spring or early fall.
Plant cilantro in Maryland two to three weeks before the last spring frost, or again in late August through mid-September for a fall crop.
Cilantro loves cool weather, and Maryland’s climate gives you two solid windows to grow it successfully.
With a little planning and succession planting, you’ll enjoy fresh cilantro for months.