One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when you can plant trailing portulaca is to use the USDA zone info for Sayre.

Planting Calendar for Trailing Portulaca

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

You should not plant trailing portulaca until after the last frost has passed because they require warm weather.

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

Last Frost Date

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

Remember that USDA zone info for Sayre is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Sayre it frosts late in the year after April 15 be ready to protect your trailing portulaca if you have one of those late frosts.

USDA Zone Info for Sayre

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 Sayre

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