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.

In Snoqualmie you can determine when you can plant scaevola by referring to the USDA zone info.

Planting Calendar for Scaevola

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

You should not plant scaevola until after the last frost because they require warm weather.

The earliest that you can plant scaevola in Snoqualmie 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. If you wait any later than that and your scaevola may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your scaevola indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Snoqualmie. You can expect an average low temperature of 15°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Snoqualmie and it changes from year to year. Half of the time in Snoqualmie last frost occurs after March 15 so make sure that you are prepared to cover your scaevola in the event of a late frost.

USDA Zone Info for Snoqualmie

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 Snoqualmie

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