Rainline GardenWinthrop and Twisp, WA frost dates and planting calendar
The typical last spring frost in Winthrop and Twisp is May 15, and the first fall frost is around September 22. Plant peas from Apr 3; 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 Winthrop (533 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 Winthrop and Twisp. 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 Winthrop and Twisp 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 Winthrop and Twisp
| Crop | Start seeds indoors | Plant in the garden | Plant again for fall |
|---|---|---|---|
 PeasPlant seeds in the ground | — | Apr 3 – May 15 | — |
RadishesPlant seeds in the ground | — | Apr 3 – May 29 | Aug 11–25 |
 SpinachPlant seeds in the ground | — | Apr 3 – May 8 | Jul 28 – Aug 18 |
LettucePlant seeds or young plants | Feb 20 – Mar 6 | Apr 3 – May 29 | Jul 28 – Aug 11 |
 OnionsPlant small onion bulbs (sets) | — | Apr 3 – May 8 | — |
 CarrotsPlant seeds in the ground | — | Apr 17 – Jun 12 | Jun 30 – Jul 14 |
 BeetsPlant seeds in the ground | — | Apr 17 – Jun 12 | Jul 14–28 |
KalePlant young plants (starts) | Mar 6–20 | Apr 17 – May 29 | Jul 14–28 |
 BroccoliPlant young plants (starts) | Feb 27 – Mar 13 | Apr 17 – May 22 | Jun 30 – Jul 14 |
 CabbagePlant young plants (starts) | Feb 27 – Mar 13 | Apr 17 – May 22 | Jun 30 – Jul 14 |
 Swiss chardPlant seeds in the ground | — | Apr 17 – Jun 12 | Jul 14–28 |
 PotatoesPlant seed potatoes | — | Apr 17 – May 29 | — |
Bush beansPlant seeds in the ground | — | May 22 – Jul 3 Keep frost cover handy at first | — |
 Sweet cornPlant seeds in the ground | — | May 22 – Jun 26 Keep frost cover handy at first | — |
 CucumbersPlant seeds or young plants | Apr 22–29 | May 20 – Jun 17 Keep frost cover handy at first | — |
Zucchini and summer squashPlant seeds or young plants | Apr 22–29 | May 20 – Jun 17 Keep frost cover handy at first | — |
 Winter squash and pumpkinsPlant seeds or young plants | Apr 22–29 | May 20 – Jun 10 Keep frost cover handy at first | — |
 TomatoesPlant young plants (starts) | Mar 25 – Apr 8 | May 20 – Jun 17 Keep frost cover handy at first | — |
 PeppersPlant young plants (starts) | Mar 11–25 | May 20 – Jun 10 Keep frost cover handy at first | — |
 BasilPlant young plants (starts) | Apr 8–22 | May 20 – Jun 17 Keep frost cover handy at first | — |
 DahliasPlant tubers | — | May 20 – Jun 17 Keep frost cover handy at first | — |
 CilantroPlant seeds in the ground | — | Apr 3 – May 22 | Aug 4–18 |
 ParsleyPlant seeds or young plants | Feb 20 – Mar 6 | Apr 17 – Jun 5 | — |
 DillPlant seeds in the ground | — | Apr 17 – Jun 19 | — |
 StrawberriesPlant young plants | — | Apr 17 – May 29 | — |
 BlueberriesPlant potted or bare-root bushes | — | Apr 17 – Jun 5 | — |
 RaspberriesPlant bare-root canes | — | Apr 17 – May 29 | — |
 GarlicPlant cloves | — | — | Sep 25 – Oct 31 |
 CauliflowerPlant young plants (starts) | Feb 27 – Mar 13 | Apr 17 – May 15 | Jun 23 – Jul 7 |
 Brussels sproutsPlant young plants (starts) | Feb 20 – Mar 6 | Apr 17 – May 29 | — |
 LeeksPlant young plants (starts) | Feb 6–20 | Apr 17 – May 29 | — |
 ArugulaPlant seeds in the ground | — | Apr 3 – May 15 | Aug 4–25 |
 Bok choyPlant seeds or young plants | Feb 27 – Mar 13 | Apr 3 – May 8 | Jul 28 – Aug 11 |
 TurnipsPlant seeds in the ground | — | Apr 3 – May 15 | Jul 21 – Aug 4 |
 KohlrabiPlant seeds or young plants | Mar 6–20 | Apr 17 – May 29 | Jul 21 – Aug 4 |
 EggplantPlant young plants (starts) | Mar 11–25 | May 20 – Jun 10 Keep frost cover handy at first | — |
 MelonsPlant seeds or young plants | Apr 22–29 | May 20 – Jun 10 Keep frost cover handy at first | — |
 Pole beansPlant seeds in the ground | — | May 22 – Jun 26 Keep frost cover handy at first | — |
 Fava beansPlant seeds in the ground | — | Apr 3 – May 8 | — |
 ShallotsPlant bulbs | — | — | Sep 25 – Oct 31 |
 AsparagusPlant dormant crowns | — | Apr 17 – May 29 | — |
 RhubarbPlant dormant crowns | — | Apr 3 – May 15 | — |
 ChivesPlant seeds or young plants | Feb 20 – Mar 6 | Apr 17 – Jun 12 | — |
 MintPlant young plants | — | Apr 17 – Jun 12 | — |
 RosemaryPlant young plants | — | Apr 17 – Jun 5 | — |
 ThymePlant young plants | — | Apr 17 – Jun 12 | — |
 OreganoPlant young plants | — | Apr 17 – Jun 12 | — |
 SunflowersPlant seeds in the ground | — | May 22 – Jul 3 Keep frost cover handy at first | — |
 Sweet peasPlant seeds in the ground | — | Apr 3 – May 8 | — |
 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.