Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Scappoose should be reffered to in order to estimate when it's possible to plant evolvulus.

Planting Calendar for Evolvulus

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

Evolvulus do not do well in cold weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant evolvulus in Scappoose 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 evolvulus and expect a good harvest is probably August. If you wait any later than that and your evolvulus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your evolvulus indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Scappoose is an average and the actual date of last frost will vary from year to year. Half of the time in Scappoose there is a last frost after March 15 so always be ready to cover your evolvulus if you have a late frost.

USDA Zone Info for Scappoose

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 Scappoose

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