One of the best tools that you have as gardeners to help us estimate 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 can determine when it's a good idea to plant trailing portulaca in Humble by checking out the USDA zone info.

Planting Calendar for Trailing Portulaca

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

Since trailing portulaca do not do well in cold weather it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant trailing portulaca in Humble 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 trailing portulaca and expect a good harvest is probably September. If you wait any later than that and your trailing portulaca may not have a chance to really do well. You can get started a few weeks earlier by starting your trailing portulaca indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Humble. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Humble may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Humble you get a frost after February 15 so make sure that you are ready to protect your trailing portulaca if you have a late frost.

USDA Zone Info for Humble

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Humble

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