The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Winfield you can figure out when it's possible to 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 all chance of frost has passed.

Portulaca require warm weather which means that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant portulaca in Winfield 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 grow to maturity. Starting your portulaca indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Winfield is just an average the actual date of last frost will vary from year to year. Since half of the time in Winfield you get surprised by a frost after April 15 be ready to cover your portulaca in the event of one of those late frosts.

USDA Zone Info for Winfield

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Winfield

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