April in Zone 1
April in Zone 1 (last frost late may – mid june, first frost late july – mid august). There are 4 crops to sow, transplant, or harvest this month.
Quick answer · Updated July 2026
In April, Zone 1 gardeners can plant Peppers, Eggplant, Onions, and Parsley. Zone 1's last frost is around Late May – mid June and first frost around Late July – mid August — the full task list below has exact timing for each crop.
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- Min Winter Temp
- -60 to -50 °F / -51 to -46 °C
- Last Spring Frost
- Late May – mid June
- First Fall Frost
- Late July – mid August
- Growing Season
- 50–80 days
- Annual Rainfall
- 10–20 in
Gardening in April in Zone 1
April is the depth of winter in Zone 1. With the last spring frost not due until around Late May – mid June, the garden is dormant and the real work is planning — ordering seeds, sketching beds, and starting only the longest-season crops indoors.
The planting focus in Zone 1 this month is Peppers, Eggplant, Onions, and Parsley — see the task cards below for exactly how and when to sow each in your conditions.
About April in the garden
April is peak planting season for cold and temperate zones. Soil is workable, temperatures are consistently above freezing in most areas, and the full complement of cool-season crops can go in. Warm zones are transitioning to summer crops.
Transplanting broccoli, cabbage, and cauliflower in cold zones; direct sowing beets, carrots, and chard; planting potatoes; last frost passes in Zones 7–8.
- Season
- spring
- Temperature trend
- Warming steadily; last frost dates pass for Zones 7 and 8 in most locations.
- Daylight
- Days are significantly longer than nights; about 13–14 hours of daylight in mid-latitudes.
- Zone 1 last frost
- Late May – mid June
- Zone 1 first frost
- Late July – mid August
4
Sow indoors
0
Sow outdoors
0
Transplant
0
Harvest
1
Maintenance
🌱 Sow indoors
Start these indoors
Get a jump on the season under lights or on a sunny windowsill so transplants are ready when the weather warms.
Sow ⅛ in deep at 80°F on a heat mat. Slow to sprout (14–21 days) — start early.
Sow ¼ in deep at 80°F; needs steady warmth for 8 weeks indoors.
Sow ¼ in deep in trays; keep tops trimmed to 3 in for stocky transplants. Choose day-length type for your latitude.
Soak seed overnight; slow to germinate (3 weeks). Surface-sow under lights.
🛠️ Maintenance
Plan, order seeds, and prep
The ground is cold or frozen — the perfect time for the indoor work that makes spring easier.
📌 Order seeds before favorites sell out, sketch next year's layout and rotations, sharpen and oil tools, and start onions/leeks late in the dormant season.
When to plant this month's crops in Zone 1
Full planting calendars — start indoors, transplant, and harvest timing — for the crops you're planting in April.
General April tasks
These apply broadly regardless of zone — a useful checklist alongside the zone-specific tasks above.
- ✓Direct sow beets, carrots, parsnips, and chard
- ✓Transplant broccoli, cabbage, and cauliflower starts
- ✓Plant potatoes once soil reaches 45°F
- ✓Sow herb seeds outdoors: dill, cilantro, parsley
- ✓Install soaker hoses and drip irrigation before beds fill in
- ✓Top-dress lawns and garden beds with compost
- ✓Prune spring-blooming shrubs immediately after bloom
- ✓Direct sow annual wildflower mixes
⚠ Watch-outs for April
- ⚠Frost is still possible in Zones 3–6 through April; keep row covers handy
- ⚠Don't transplant warm-season crops outdoors before last frost date
- ⚠Newly direct-sown seeds dry out quickly in warm April sun — water consistently
- ⚠Aphids and other soft-bodied insects appear early in spring; monitor and treat
April in Zone 1: common questions
What can I plant in April in Zone 1?＋
In April, Zone 1 gardeners can sow or transplant Peppers, Eggplant, Onions, and Parsley. April in Zone 1 (last frost late may – mid june, first frost late july – mid august). There are 4 crops to sow, transplant, or harvest this month.
When is the last and first frost in Zone 1?＋
Zone 1 typically has its last spring frost around Late May – mid June and its first fall frost around Late July – mid August, giving a growing season of roughly 50–80 days. Always check a local frost-date source, since microclimates vary.
What garden jobs matter most in April in Zone 1?＋
Focus on direct sow beets, carrots, parsnips, and chard, transplant broccoli, cabbage, and cauliflower starts, plant potatoes once soil reaches 45°f. Watch out for frost is still possible in zones 3–6 through april; keep row covers handy.