The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 figuring out when you can plant carnation is to look at the USDA zone info for Robstown.

Planting Calendar for Carnation

Frost tolerance for carnation:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since carnation are very cold tolerant you can plant them earlier in the year than other frost tender plants.

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

The last month that you can plant carnation and expect a good harvest is probably October. You probably don't want to wait any later than that or else your carnation may not have a chance to fully mature. You can get started a little bit earlier by starting your carnation indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Robstown. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Robstown is just an average the actual date of last frost is different every year. Since half of the time in Robstown you get surprised by a frost after February 15 be ready to cover your carnation if you have one of those late frosts.

USDA Zone Info for Robstown

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Robstown

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