One of the first steps you take when you are making a decision about 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.

A common way of estimating when it's a good idea to plant sunflowers is to examine the USDA zone info for Cuero.

Planting Calendar for Sunflowers

Frost tolerance for sunflowers:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since sunflowers are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant sunflowers in Cuero 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 sunflowers and expect a good harvest is probably September. You probably don't want to wait any later than that or else your sunflowers may not have a chance to fully mature. You can get started a few weeks earlier by starting your sunflowers indoors.

Last Frost Date

The average date of last frost is February 15 in Cuero. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Cuero is just an average the actual date of last frost changes from year to year. Half of the time in Cuero there is a last frost after February 15 so make sure that you are ready to protect your sunflowers in the event of a late frost.

USDA Zone Info for Cuero

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 Cuero

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