When to Plant Window Box in Zone 3a
Family: Lamiaceae · Herb
Planting Schedule
Add Window Box to your garden to build a schedule and get reminders.
Get the exact Zone 3a timeline for your Window Box. See localized frost dates, indoor sowing windows, and optimal companions below.
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Explore Window Box Data
Crop Dates : 3a
| Milestone | Date |
|---|---|
| Start Indoors | Apr 3rd |
| Last Frost | May 15th |
| Transplant / Sow Outdoors | Jul 3rd |
| Harvest Begins | Aug 22nd |
| Harvest Ends | Sep 1st |
Garden Alerts
In Zone 3a, the average last spring frost is around May 15. Watch soil temperature before transplanting Window Box.
Garden Alerts
In Zone 3a, the average last spring frost is around May 15. Watch soil temperature before transplanting Window Box.