When to Plant Cilantro in Maryland (2026 Guide)
Cilantro is a valued herb in many Maryland kitchens, prized for its aromatic leaves and seeds. Understanding when to plant cilantro is crucial for achieving a bountiful harvest, particularly in a state with diverse zones like Maryland. For gardeners in warmer areas, such as Zone 6b, the last spring frost typically falls around April 11, marking an excellent time to begin planting.
The climate in Maryland can vary significantly across regions, with the eastern shore experiencing different weather patterns than inland areas. In general, cilantro thrives in the cooler months, and many gardeners are eager to start sowing as soon as the danger of frost has passed. Specifically, those in Zone 6a should be aware that the median last frost occurs around April 18, while Zone 5b gardeners may not plant until early May.
Knowing when to plant cilantro and how to manage its growth will help you enjoy fresh, flavorful additions to your meals. Beyond just timing, understanding the potential for warm weather is essential—as cilantro is prone to bolt and go to seed when days get long and temperatures rise. This guide will help you navigate the best practices for planting and harvesting cilantro throughout Maryland.
Planting Schedule by USDA Zone in Maryland
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 6b | Not recommended — direct sow only. | Not recommended — direct sow only. | Start March 15 – April 11, ~6–8 weeks before April 11. | Harvest from late April through early June, before extreme heat. |
| Zone 6a | Not recommended — direct sow only. | Not recommended — direct sow only. | Start March 25 – April 18, ~6–8 weeks before April 18. | Harvest from late April through early June, before the heat arrives. |
| Zone 5b | Not recommended — direct sow only. | Not recommended — direct sow only. | Start April 20 – May 4, ~6–8 weeks before May 4. | Harvest from mid-May through early June, being wary of warm spells. |
Cilantro Planting Windows in Maryland
- Indoor start: Not applicable — direct sowing is the recommended method for all zones in Maryland.
- Transplant outdoors: Not applicable — direct sowing is advised instead of transplanting cilantro in Maryland.
- Harvest: Harvesting can begin from late April through the first week of June, depending on the zone.
Common Mistakes Growing Cilantro in Maryland
- Many Maryland gardeners assume cilantro can be started indoors, but it really flourishes best when direct sown. Avoid indoor starting to get the most out of your herbs this season.
- Gardeners often overlook the impact of Maryland’s heat on cilantro. Bolting can occur rapidly, so be sure to check your local temperatures and consider succession planting to ensure a steady supply.
- Some may underestimate the length of the growing season in their specific area. Maryland's varied climate means that some zones require different approaches for growing cilantro.
- Overwatering is a common pitfall, especially in Maryland's humid regions. Cilantro prefers well-drained soil, and identifying good drainage conditions is essential to prevent root rot.
- Not understanding the neighborly influence of other plants can lead to hybrid seeds that alter flavor. Keep cilantro separated from dill by at least 3-4 feet to maintain desired taste in your crops.
Frequently Asked Questions
What if I'm in a cold pocket of Maryland?
If you're in a colder area, be cautious with your planting dates. Wait until your local last frost date has passed to minimize the risk of frost damage to your cilantro.
Can I still plant cilantro in May?
Yes, you can plant cilantro in May, especially in Zone 5b. However, be aware that this will likely shorten your harvest window due to the rising temperatures.
How often should I replant cilantro?
For continuous harvests, consider replanting every 2-3 weeks during the cool season. This method ensures a steady supply of fresh cilantro before the heat causes it to bolt.
Does cilantro grow well in Maryland's humidity?
Cilantro can thrive in Maryland's humidity, but excessive moisture can lead to root rot. Ensure good drainage and avoid overwatering to support healthy growth.
What should I do if my cilantro bolts?
If your cilantro bolts, let it flower and go to seed as this helps attract beneficial insects. You can save seeds for next year or allow them to self-sow in the garden.
Keep Learning
City guides in Maryland
Other crops in Maryland
Typical fall sowing window for Cilantro in Maryland: August 6 – August 27.