One of the best tools that you have as gardeners to help us figure out 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.

In Humble you can determine when it's a good idea to plant coleus by using the USDA zone info.

Planting Calendar for Coleus

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

Since coleus require warm weather you must wait until after the last frost before you can plant them.

The earliest that you can plant coleus 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 coleus and expect a good harvest is probably September. If you wait any later than that and your coleus may not have a chance to grow to maturity. Starting your coleus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Humble and it changes from year to year. Half of the time in Humble you get a frost after February 15 so just be sure to be ready to cover your coleus in the event of 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.