When to Plant Pumpkins in Sunnyside, WA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant pumpkins in Sunnyside can be estimated by checking out the USDA zone info.


Planting Calendar for Pumpkins

Frost tolerance for pumpkins: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Pumpkins require warm weather which tells us that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pumpkins
Possibly ok, but a risky time to plant pumpkins
Probably not a good time to plant pumpkins

The earliest that you can plant pumpkins in Sunnyside is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant pumpkins and expect a good harvest is probably August. If you wait any later than that and your pumpkins may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your pumpkins indoors.

Last Frost Date

On average the last frost is on April 15 in Sunnyside. In the coldest months of winter you should expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Sunnyside is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Sunnyside you get surprised by a frost after April 15 be ready to cover your pumpkins in the event of one of those late frosts.

USDA Zone Info for Sunnyside

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Sunnyside

You may be interested in your other planting guides for Sunnyside.