Last frost date in Garden City, Idaho
May 17
Average last frost in spring. In an early year (1 in 10) it's over by April 27; in a late year (1 in 10) it comes after June 10.
October 12
Average first frost in fall. 1 year in 10 it comes by September 27.
Source: NOAA U.S. Climate Normals 1991–2020, station Boise 7 N (USC00101017), 6.7 miles from Garden City, elevation 3,885 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 27 | May 17 | June 10 |
| First frost in fall | Sept 27 | Oct 12 | Oct 30 |
An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.
Frost-free days in an average year: 147
Planting calendar for Garden City
Fall planting
USDA dates for places whose average first freeze is about October 10 (Garden City: October 12).
- Eggplant plantsMay 15 – June 15 (past for this year)
- PotatoesMay 15 – June 15 (past for this year)
- Sweet potatoesMay 20 – June 10 (past for this year)
- Black-eyed peasJune 1 – July 1 (past for this year)
- Cabbage plantsJune 1 – July 15 (past for this year)
- Cantaloupe (muskmelon)June 1 – 15 (past for this year)
- CarrotsJune 1 – July 20 (past for this year)
- Cauliflower plantsJune 1 – July 25 (past for this year)
- Celery and celeriac plantsJune 1 – July 15 (past for this year)
- CucumbersJune 1 – July 1 (past for this year)
- Lima beansJune 1 – 15 (past for this year)
- New Zealand spinachJune 1 – July 15 (past for this year)
- OkraJune 1 – July 15 (past for this year)
- ParsnipsJune 1 – July 10 (past for this year)
- Peppers plantsJune 1 – July 1 (past for this year)
- SalsifyJune 1 – July 1 (past for this year)
- SoybeansJune 1 – 25 (past for this year)
- Summer squashJune 1 – July 15 (past for this year)
- Sweet cornJune 1 – July 10 (past for this year)
- Swiss chardJune 1 – July 20 (past for this year)
- TomatoesJune 1 – 20 (past for this year)
- WatermelonJune 1 – 15 (past for this year)
- Winter squashJune 1 – July 1 (past for this year)
- Witloof chicoryJune 1 – July 1 (past for this year)
- BeetsJune 15 – July 25 (past for this year)
- Broccoli plantsJune 15 – July 15 (past for this year)
- Brussels sprouts plantsJune 15 – July 15 (past for this year)
- Chinese cabbageJune 15 – Aug 1 (past for this year)
- Florence fennelJune 15 – July 15 (past for this year)
- ParsleyJune 15 – Aug 1 (past for this year)
- RutabagaJune 15 – July 15 (past for this year)
- Snap beansJune 15 – July 20 (past for this year)
- Collards plantsJuly 1 – Aug 1 (past for this year)
- EndiveJuly 1 – Aug 15 (past for this year)
- KaleJuly 1 – Aug 1 (past for this year)
- KohlrabiJuly 1 – Aug 1 (past for this year)
- SorrelJuly 1 – Aug 1 (past for this year)
- TurnipsJuly 1 – Aug 1 (past for this year)
- DandelionJuly 15 – Sept 1 (past for this year)
- Head lettuce plantsJuly 15 – Aug 15 (past for this year)
- Leaf lettuceJuly 15 – Sept 1 (past for this year)
- Mustard greensJuly 15 – Aug 15 (past for this year)
- RadishesJuly 15 – Sept 15 (past for this year)
- SpinachAug 1 – Sept 1 (past for this year)
- Corn saladAug 15 – Sept 15 (past for this year)
- Upland cressAug 15 – Sept 15 (past for this year)
- Rhubarb plantsOct 15 – Nov 15Now
- Asparagus plantsOct 20 – Nov 15Now
USDA lists chervil and chives, garlic, horseradish, leeks, onion plants, onion seed, onion sets, garden peas, shallots as generally spring-planted here.
Spring planting
USDA dates for places whose average last freeze is about May 20 (Garden City: May 17).
- SpinachApr 10 – June 15
- Chervil and chivesApr 15 – May 15
- Corn saladApr 15 – June 1
- DandelionApr 15 – May 15
- Garden peasApr 15 – June 1
- GarlicApr 15 – May 15
- PotatoesApr 15 – June 15
- RadishesApr 15 – June 15
- Rhubarb plantsApr 15 – May 10
- TurnipsApr 15 – June 1
- Asparagus plantsApr 20 – May 15
- Horseradish plantsApr 20 – May 20
- KaleApr 20 – May 10
- KohlrabiApr 20 – May 20
- Onion plants plantsApr 20 – May 15
- Onion seedApr 20 – May 15
- Onion setsApr 20 – May 15
- ShallotsApr 20 – May 10
- BeetsApr 25 – June 15
- Broccoli plantsMay 1 – June 15
- Brussels sprouts plantsMay 1 – June 15
- Cabbage plantsMay 1 – June 15
- CarrotsMay 1 – June 1
- Chinese cabbageMay 1 – June 15
- Collards plantsMay 1 – June 1
- EndiveMay 1 – 30
- Florence fennelMay 1 – 30
- Head lettuce plantsMay 1 – June 30
- Leaf lettuceMay 1 – June 30
- LeeksMay 1 – 20
- Mustard greensMay 1 – June 30
- ParsleyMay 1 – 20
- ParsnipsMay 1 – 20
- RutabagaMay 1 – 20
- SalsifyMay 1 – June 1
- SorrelMay 1 – June 1
- Upland cressMay 1 – June 1
- Cauliflower plantsMay 10 – June 15
- Celery and celeriac plantsMay 10 – June 15
- Swiss chardMay 10 – June 15
- Snap beansMay 15 – June 30
- Sweet cornMay 15 – June 1
- New Zealand spinachMay 20 – June 15
- Summer squashMay 20 – June 15
- Peppers plantsMay 25 – June 15
- TomatoesMay 25 – June 15
- CucumbersJune 1 – 15
- Eggplant plantsJune 1 – 15
- OkraJune 1 – 20
- Witloof chicoryJune 1 – 15
- WatermelonJune 15 – July 1
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.
Nearby in Idaho
- Boise City 6 mi · last frost Apr 24
- Meridian 7 mi · last frost Apr 24
- Eagle 10 mi · last frost Apr 30
- Star 10 mi · last frost Apr 29
- Kuna 11 mi · last frost Apr 24