When to Plant Parsley in Minnesota (2026 Guide)
If you're considering growing parsley in Minnesota, understanding your specific zone and frost dates is crucial. In Zone 6a, the last spring frost typically occurs around April 30, while in Zone 5b, this date extends to May 4. Knowing when these frosts happen will help you maximize the growing season for this versatile herb.
Parsley is a biennial herb, best grown as an annual, producing lush leaves in its first year. Most gardeners prefer to start fresh parsley each year, as the plant tends to bolt in its second year, leading to a decline in leaf quality. By planning your planting schedule around frost dates, you'll ensure that your parsley flourishes.
In Minnesota, where climate can be unpredictable, especially with late spring snow, keeping an eye on the weather is vital. Whether you're planting in Duluth or Rochester, planting parsley requires knowledge of your area’s frost dates and growing conditions to secure a bountiful harvest throughout the growing season.
Planting Schedule by USDA Zone in Minnesota
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 6a | Start February 15 – March 1, ~6–8 weeks before April 30 | Transplant outdoors after April 30, ideally May 1 – May 15 | Direct sow from May 1 – May 15 | Harvest from June 15 – October 5 |
| Zone 5b | Start February 20 – March 5, ~6–8 weeks before May 4 | Transplant outdoors after May 4, ideally May 10 – May 15 | Direct sow from May 10 – May 15 | Harvest from June 15 – September 29 |
| Zone 5a | Start March 1 – March 15, ~6–8 weeks before May 17 | Transplant outdoors after May 17, ideally May 20 – May 30 | Direct sow from May 20 – May 30 | Harvest from June 15 – September 23 |
Parsley Planting Windows in Minnesota
- Indoor start: For Minnesota gardeners, begin indoor sowing of parsley from February 15 to March 15, depending on your specific zone.
- Transplant outdoors: Transplant parsley outdoors from May 1 to May 30, aligning with local frost dates for best results.
- Harvest: Harvest parsley from June 15 until the first fall frost, typically around September 29 in Zone 5b.
Common Mistakes Growing Parsley in Minnesota
- Many gardeners in Minnesota underestimate the impact of late spring snows on seedling emergence. It's crucial to wait until all frost threats are gone before planting parsley outdoors, especially in areas like Duluth.
- A common mistake is neglecting to harden off parsley seedlings before transplanting. In Minnesota’s varied climates, this step is vital to prevent transplant shock and improve survival rates.
- Planting parsley too late in the season can lead to poor growth due to shorter days. Make sure to follow the frost dates specific to your Minnesota zone to give your plants the best chance.
- Overwatering is another frequent issue for Minnesota gardeners. During the humid months, ensure good drainage and monitor soil moisture levels to avoid fungal disease.
- Failing to prepare the soil adequately can hinder parsley growth. Many parts of Minnesota have heavy clay soil, which can impede root development; consider amending your soil with compost to enhance structure.
Frequently Asked Questions
What if I'm in a cold pocket of Minnesota?
If you're located in a cold pocket, it's best to start parsley seeds indoors for a few extra weeks. Monitor your local frost dates and be prepared to adjust your transplanting schedule accordingly.
Can I still plant parsley in May?
Absolutely! If you're in Zone 5b, you can direct sow parsley seeds as late as May 15. Just make sure to plant after the last frost date to ensure optimal growth.
How do I prevent my parsley from bolting?
To prevent bolting, select varieties that are less prone to it, such as flat-leaf Italian parsley, and ensure consistent watering. Regular harvesting can also help encourage leaf production over flowering.
Should I water parsley daily?
In Minnesota's humid summers, it's crucial to maintain consistent soil moisture without overwatering. Monitor soil dampness and water deeply but less frequently instead of daily to prevent root rot.
Is it too late to harvest parsley in late September?
No, it’s not too late! You can harvest parsley until the first fall frost, which typically arrives by late September in most zones. Just be sure to pull out any damaged plants once frost hits.
Keep Learning
City guides in Minnesota
Other crops in Minnesota
Typical fall sowing window for Parsley in Minnesota: June 26 – July 17.