Rainline GardenOmak and Okanogan, WA frost dates and planting calendar
The typical last spring frost in Omak and Okanogan is April 30, and the first fall frost is around October 7. Plant peas from Apr 1; plant tomatoes from May 20.
Inland Northwest. Higher, colder interior valleys. Cold springs and an earlier fall mean a shorter season; quick-maturing varieties pay off.
Frost dates are 1991–2020 NOAA climate normals for Omak Airport (395 m elevation). Gardens in cold hollows or at higher elevation can frost later in spring and earlier in fall.
What to plant now
Turn on JavaScript to see what's in season today. The full calendar is below.
New to gardening? Start with these 5 easy crops
They're forgiving, quick and hard to kill in Omak and Okanogan. Tap one for planting dates and step-by-step instructions, or read the beginner's guide.
RadishesReady in about four weeks, so you see results fast.
LettuceGrows in cool weather and a bit of shade, and you can pick it for weeks.
Bush beansBig seeds that are easy to plant, and one sowing feeds you all summer.
Zucchini and summer squashTwo plants are plenty. It almost always produces.
KaleShrugs off Northwest cold and keeps going into winter.
Make a garden plan for Omak and Okanogan Pick your plants and get a dated, printable to-do list.
Planting calendar
- Start seeds indoors
- Plant in the garden
- Plant again for fall
- Frost possible
- Frost likely
How to read this: each bar shows when to do that job. Dashed bars are for starting seeds indoors in trays; solid bars are for planting in the garden.
Planting dates for Omak and Okanogan
| Crop | Start seeds indoors | Plant in the garden | Plant again for fall |
|---|---|---|---|
 PeasPlant seeds in the ground | — | Apr 1 – May 13 | — |
RadishesPlant seeds in the ground | — | Apr 1 – May 27 | Aug 26 – Sep 9 |
 SpinachPlant seeds in the ground | — | Apr 1 – May 6 | Aug 12 – Sep 2 |
LettucePlant seeds or young plants | Feb 18 – Mar 4 | Apr 1 – May 27 | Aug 12–26 |
 OnionsPlant small onion bulbs (sets) | — | Apr 1 – May 6 | — |
 CarrotsPlant seeds in the ground | — | Apr 15 – Jun 10 | Jul 15–29 |
 BeetsPlant seeds in the ground | — | Apr 15 – Jun 10 | Jul 29 – Aug 12 |
KalePlant young plants (starts) | Mar 4–18 | Apr 15 – May 27 | Jul 29 – Aug 12 |
 BroccoliPlant young plants (starts) | Feb 25 – Mar 11 | Apr 15 – May 20 | Jul 15–29 |
 CabbagePlant young plants (starts) | Feb 25 – Mar 11 | Apr 15 – May 20 | Jul 15–29 |
 Swiss chardPlant seeds in the ground | — | Apr 15 – Jun 10 | Jul 29 – Aug 12 |
 PotatoesPlant seed potatoes | — | Apr 15 – May 27 | — |
Bush beansPlant seeds in the ground | — | May 15 – Jun 26 | — |
 Sweet cornPlant seeds in the ground | — | May 15 – Jun 19 | — |
 CucumbersPlant seeds or young plants | Apr 22–29 | May 20 – Jun 17 | — |
Zucchini and summer squashPlant seeds or young plants | Apr 22–29 | May 20 – Jun 17 | — |
 Winter squash and pumpkinsPlant seeds or young plants | Apr 22–29 | May 20 – Jun 10 | — |
 TomatoesPlant young plants (starts) | Mar 25 – Apr 8 | May 20 – Jun 17 | — |
 PeppersPlant young plants (starts) | Mar 11–25 | May 20 – Jun 10 | — |
 BasilPlant young plants (starts) | Apr 8–22 | May 20 – Jun 17 | — |
 DahliasPlant tubers | — | May 20 – Jun 17 | — |
 CilantroPlant seeds in the ground | — | Apr 1 – May 20 | Aug 19 – Sep 2 |
 ParsleyPlant seeds or young plants | Feb 18 – Mar 4 | Apr 15 – Jun 3 | — |
 DillPlant seeds in the ground | — | Apr 15 – Jun 17 | — |
 StrawberriesPlant young plants | — | Apr 15 – May 27 | — |
 BlueberriesPlant potted or bare-root bushes | — | Apr 15 – Jun 3 | — |
 RaspberriesPlant bare-root canes | — | Apr 15 – May 27 | — |
 GarlicPlant cloves | — | — | Sep 25 – Oct 31 |
 CauliflowerPlant young plants (starts) | Feb 25 – Mar 11 | Apr 15 – May 13 | Jul 8–22 |
 Brussels sproutsPlant young plants (starts) | Feb 18 – Mar 4 | Apr 15 – May 27 | — |
 LeeksPlant young plants (starts) | Feb 4–18 | Apr 15 – May 27 | — |
 ArugulaPlant seeds in the ground | — | Apr 1 – May 13 | Aug 19 – Sep 9 |
 Bok choyPlant seeds or young plants | Feb 25 – Mar 11 | Apr 1 – May 6 | Aug 12–26 |
 TurnipsPlant seeds in the ground | — | Apr 1 – May 13 | Aug 5–19 |
 KohlrabiPlant seeds or young plants | Mar 4–18 | Apr 15 – May 27 | Aug 5–19 |
 EggplantPlant young plants (starts) | Mar 11–25 | May 20 – Jun 10 | — |
 MelonsPlant seeds or young plants | Apr 22–29 | May 20 – Jun 10 | — |
 Pole beansPlant seeds in the ground | — | May 15 – Jun 19 | — |
 Fava beansPlant seeds in the ground | — | Apr 1 – May 6 | — |
 ShallotsPlant bulbs | — | — | Sep 25 – Oct 31 |
 AsparagusPlant dormant crowns | — | Apr 15 – May 27 | — |
 RhubarbPlant dormant crowns | — | Apr 1 – May 13 | — |
 ChivesPlant seeds or young plants | Feb 18 – Mar 4 | Apr 15 – Jun 10 | — |
 MintPlant young plants | — | Apr 15 – Jun 10 | — |
 RosemaryPlant young plants | — | Apr 15 – Jun 3 | — |
 ThymePlant young plants | — | Apr 15 – Jun 10 | — |
 OreganoPlant young plants | — | Apr 15 – Jun 10 | — |
 SunflowersPlant seeds in the ground | — | May 15 – Jun 26 | — |
 Sweet peasPlant seeds in the ground | — | Apr 1 – May 6 | — |
 TulipsPlant bulbs | — | — | Sep 25 – Oct 31 |
 DaffodilsPlant bulbs | — | — | Sep 25 – Oct 31 |
Dates are a guide, not a guarantee. Check the soil before planting: cool-season crops need it workable and not soggy; warm-season crops need it warm. A $10 soil thermometer pays for itself. Unfamiliar terms are explained in the glossary.
Nearby areas with similar weather
All Oregon and Washington cities or use the planner with your ZIP.