One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. 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 scaevola in Chehalis can be estimated by reviewing the USDA zone info.

Planting Calendar for Scaevola

Frost tolerance for scaevola:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's not a good idea to plant scaevola until after the last frost when the weather gets warmer because they do not do well in cold weather.

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

Last Frost Date

On average all chance of frost has passed is on March 15 in Chehalis. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Chehalis may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Chehalis you get surprised by a frost after March 15 be ready to cover your scaevola in the event of a late frost.

USDA Zone Info for Chehalis

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Chehalis

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