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

You will be able to determine when it's the best time to plant portulaca by reviewing the USDA zone info for Dillon.

Planting Calendar for Portulaca

Frost tolerance for portulaca:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant portulaca until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant portulaca in Dillon 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. If you wait any later than that and your portulaca may not have a chance to grow to maturity. If you are starting your portulaca indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Dillon. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Dillon is just an average the actual date of last frost will vary from year to year. Since half of the time in Dillon it frosts late in the year after March 15 be ready to protect your portulaca if you have a surprise late frost.

USDA Zone Info for Dillon

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 Dillon

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