One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. 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 Forest Grove should be determined by reviewing the USDA zone info.

Planting Calendar for Pumpkins

Frost tolerance for pumpkins:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant pumpkins until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant pumpkins in Forest Grove 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. Any later than that and your pumpkins may not have a chance to fully mature. You can get started a little bit earlier by starting your pumpkins indoors.

Last Frost Date

In Forest Grove the average date of last frost happens on March 15. You should expect an average low temperature of 15°F in the coldest months of winter.

Remember that USDA zone info for Forest Grove is an average and the actual date of last frost will vary from year to year. Since half of the time in Forest Grove you get surprised by a frost after March 15 be ready to protect your pumpkins in the event of one of those late frosts.

USDA Zone Info for Forest Grove

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Forest Grove

You may be interested in your other planting guides for Forest Grove.