Before planting it is a good idea to find your USDA Zone info to figure out 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 Battle Ground you can estimate when you can plant portulaca by referring to the USDA zone info.

Planting Calendar for Portulaca

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

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

The earliest that you can plant portulaca in Battle Ground 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 portulaca and expect a good harvest is probably August. You probably don't want to wait any later than that or else your portulaca may not have a chance to really do well. If you are starting your portulaca indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Battle Ground the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Battle Ground may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Battle Ground you get a frost after March 15 be ready to protect your portulaca if you have one of those late frosts.

USDA Zone Info for Battle Ground

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 Battle Ground

You may be interested in your other planting guides for Battle Ground.