The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Washougal you can determine when to plant geranium by referring to the USDA zone info.

Planting Calendar for Geranium

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

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

The earliest that you can plant geranium in Washougal 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 geranium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your geranium may not have a chance to fully mature. You can get started a few weeks earlier by starting your geranium indoors.

Last Frost Date

The average date of last frost is March 15 in Washougal. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Washougal is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Washougal you get a frost after March 15 so make sure that you are prepared to cover your geranium in the event of one of those late frosts.

USDA Zone Info for Washougal

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 Washougal

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