When to Plant Parsley in Arizona (2026 Guide)
If you're planning to grow parsley in Arizona, understanding the right planting times is crucial. Depending on your USDA hardiness zone, the ideal dates for sowing and transplanting parsley can vary significantly. In Zone 8b–9a, for example, the median last spring frost date is February 8, while in Zone 7b–8a, it is February 16. Knowing these dates can help you optimize your growing season.
Parsley is a versatile herb that can be grown either in the ground or containers, making it suitable for any garden setting. It thrives in full sun and well-draining soil, allowing it to reach its full flavor potential. Whether you choose curly parsley for garnish or flat-leaf Italian parsley for cooking, ensuring proper planting timing enhances your success with this herb.
In Arizona, the frost-free season averages around 300 days in the most populous areas. This provides ample opportunity for parsley production. However, be mindful of factors such as late spring frosts and summer heat, which can impact your crop. Monitoring your local frost dates will give you the best chance for a bountiful harvest.
Planting Schedule by USDA Zone in Arizona
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 8b–9a | Start seeds indoors from December 15 – January 15, ~6-8 weeks before the last frost | Transplant outdoors after February 8 | Direct sow seeds from February 15 – March 15 | Harvest from April 15 – November 30 |
| Zone 7b–8a | Start seeds indoors from December 30 – January 30, ~6-8 weeks before the last frost | Transplant outdoors after February 16 | Direct sow seeds from February 20 – March 20 | Harvest from April 20 – November 15 |
| Zone 5b | Start seeds indoors from March 1 – March 15, ~6-8 weeks before the last frost | Transplant outdoors after May 4 | Direct sow seeds from May 10 – May 25 | Harvest from June 1 – October 15 |
Parsley Planting Windows in Arizona
- Indoor start: Start parsley seeds indoors between December 15 and January 15 for optimal growth in Arizona.
- Transplant outdoors: Transplant parsley outdoors after your area's last spring frost date, which is February 8 for Zone 8b–9a or February 16 for Zone 7b–8a.
- Harvest: Harvest parsley from April 15 through November 30 in Arizona to enjoy a continuous supply during the growing season.
Common Mistakes Growing Parsley in Arizona
- One common mistake in Arizona is planting parsley too early, especially in Zone 5b. It’s essential to wait until after the last frost, May 4, to avoid potential plant loss due to cold temperatures.
- Overwatering can be an issue, especially in Arizona's dry climate. Ensure that parsley is in well-draining soil and allow it to dry out slightly between waterings to prevent root rot.
- Many growers in Arizona forget that parsley prefers cooler temperatures. It's best to plant it in early spring or fall to avoid the extreme summer heat that can cause the plant to bolt prematurely.
- Failing to provide adequate shade during the hottest months can stress parsley plants. Arizona's intense sun can affect growth rates and flavor, so consider partial shade covers in summer.
- Some gardeners may not soak parsley seeds before planting, which is crucial for improving germination rates. In Arizona's warm climate, pre-soaking can cut down on germination times significantly.
Frequently Asked Questions
What if I'm in a cold pocket of Arizona?
If you're in a colder area, consider starting your parsley seeds indoors earlier and transplanting them once the risk of frost has passed. Use row covers to protect young plants if there's a chance of an unexpected cold snap.
Can I still plant parsley in May?
Yes, you can plant parsley in May, but be cautious of the heat that may cause it to bolt. If in Zone 5b, direct sow only after May 10 to avoid frost exposure while ensuring the plant can establish itself before the summer.
How do I prevent parsley from bolting?
To prevent bolting, ensure your parsley receives enough water, especially during hot days. Providing partial shade during the hottest parts of the day can also help maintain its health and encourage leaf production over flowering.
Can I grow parsley in containers?
Absolutely! Parsley grows well in containers, but use a pot that is at least 10–12 inches deep with good drainage. This makes it easier to manage watering, especially in the summer months.
Is it too late to start parsley if I missed the spring window?
If you missed the early spring planting window, you can still sow parsley directly in late summer. Aim for early fall planting to allow the plants to grow before the first frost hits.
Keep Learning
City guides in Arizona
Other crops in Arizona
Typical fall sowing window for Parsley in Arizona: August 25 – September 15.