One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. 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 a good idea to plant portulaca by reviewing the USDA zone info for Brookings.

Planting Calendar for Portulaca

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

Portulaca require warm 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 portulaca in Brookings is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant portulaca and expect a good harvest is probably September. Any later than that and your portulaca may not have a chance to grow to maturity. You can get started a little bit earlier by starting your portulaca indoors.

Last Frost Date

The average date of last frost is February 15 in Brookings. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that USDA zone info for Brookings may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Brookings last frost occurs after February 15 be ready to protect your portulaca if you have a surprise late frost.

USDA Zone Info for Brookings

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Brookings

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