Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant cucumbers in Kelso can be estimated by using the USDA zone info.

Planting Calendar for Cucumbers

Frost tolerance for cucumbers:	Not tolerant of frost.
When to plant:	After the last frost.

Since cucumbers are not cold tolerant you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant cucumbers in Kelso 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 cucumbers and expect a good harvest is probably August. Any later than that and your cucumbers may not have a chance to fully mature. Starting your cucumbers indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Kelso 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.

Since the USDA zone info for Kelso is just an average the actual date of last frost will vary from year to year. Half of the time in Kelso you get surprised by a frost after March 15 so make sure that you are prepared to protect your cucumbers if you have a late frost.

USDA Zone Info for Kelso

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 Kelso

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