One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Katy you can determine when to plant strawflowers by looking at the USDA zone info.

Planting Calendar for Strawflowers

Frost tolerance for strawflowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since strawflowers are barely cold tolerant you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant strawflowers in Katy is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant strawflowers and expect a good harvest is probably September. If you wait any later than that and your strawflowers may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your strawflowers indoors.

Last Frost Date

In Katy the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Katy is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Katy you get a frost after February 15 so just be sure to be ready to protect your strawflowers if you have a surprise late frost.

USDA Zone Info for Katy

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 Katy

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