One of the first steps you take when you are determining your gardening schedule is find your 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.

One way of making a decision about when it's a good idea to plant scaevola is to refer to the USDA zone info for Douglas.

Planting Calendar for Scaevola

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

Scaevola require warm weather which tells us that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant scaevola in Douglas 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 little bit earlier by starting your scaevola indoors.

Last Frost Date

The average date of last frost is March 15 in Douglas. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Douglas is an average the actual date of last frost changes from year to year. Since half of the time in Douglas you get surprised by a frost after March 15 be ready to protect your scaevola in the event of a surprise late frost.

USDA Zone Info for Douglas

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 Douglas

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