When to Plant Impatiens in USDA Zone 2a
June in the garden — Zone 2a
Each item below is timed to Zone 2a's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Set out impatiens seedlings
Frost risk is low now in Zone 2a. If you've been covering beds overnight, you can stop.
Impatiens (Impatiens walleriana) are the go-to annual for shaded beds and containers. They produce a continuous carpet of flat-faced blooms from transplant until frost, needing little deadheading. Their preference for consistent moisture and part-shade makes them ideal under trees and along north-facing borders.
In Zone 2a, the average last spring frost is around May 30 and the first fall frost is around September 1, giving you a growing season of approximately 94 days.
Impatiens Planting Timeline — Zone 2a
Where Is USDA Zone 2a?
The map below highlights the states that contain Zone 2a. Click any state to see the Impatiens planting schedule for that location.
Impatiens Planting Calendar — Zone 2a
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 21 | Mar 21 – Apr 4 |
| Transplant Outdoors | June 13 | Jun 13 – Jun 27 |
| Bloom | September 5 | Sep 5 – Sep 26 |
· 10" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | — |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Free Zone 2a Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 2a with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
Days to Maturity
60–75 days
Soil pH
6 – 6.5
Zone Temperature Range
-50°F to -45°F average annual minimum
Growing Season
94 days (Zone 2a average)
Planting Specifications
| Plant Spacing | 10 inches apart |
| Row Spacing | 12 inches between rows |
Growing Tips for Impatiens in Zone 2a
Zone 2a has a short growing season (~94 days). Start Impatiens indoors early and use season-extension techniques like row covers and cold frames.
Start seeds indoors 8–10 weeks before last frost at 70–75°F; germination requires light — do not cover seeds. Transplant after last frost once nights consistently exceed 50°F. Water regularly — wilting causes bud drop and they rarely fully recover the same flush. Watch for impatiens downy mildew (IDM); consider New Guinea impatiens as a resistant alternative in affected regions. Pinch tips at planting to encourage branching.
Companion Planting
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Saving Impatiens Seeds
Recommended for Your Garden
Full-spectrum LED lights for starting seeds indoors when daylight is limited.
Warm soil for faster germination of heat-loving crops like tomatoes and peppers.
Protect plants from frost, wind, and pests while letting light and water through.
Related Plants
Impatiens in Other Zones
Impatiens by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Impatiens in Zone 2a?
In Zone 2a, plan your Impatiens planting around the average last frost date of May 30. Start seeds indoors around March 21. Transplant seedlings around June 13.
Can Impatiens grow in Zone 2a?
Yes, Impatiens can grow well in Zone 2a, hardy in USDA zones 2a through 11b. Zone 2a has a growing season of approximately 94 days, which is sufficient for Impatiens (60-75 days to maturity).
When can I harvest Impatiens in Zone 2a?
In Zone 2a, expect to harvest Impatiens from September 5 – September 26. Impatiens takes 60-75 days from planting to harvest.
What is the last frost date for Zone 2a?
The average last spring frost in Zone 2a is around May 30, and the first fall frost is around September 1. This gives a growing season of approximately 94 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Impatiens?
Good companion plants for Impatiens include Hostas, Ferns, Caladiums, Begonias. These companions can help with pest control, pollination, and nutrient sharing.
Your Zone 2a Garden Planner — Free
A 22-page printable planner tailored to Zone 2a. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.