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 should be able to estimate when it's possible to plant carnation by using the USDA zone info for Rosenberg.

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 a lot earlier in the year than other frost tender plants.

The earliest that you can plant carnation in Rosenberg 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. If you wait any later than that and your carnation may not have a chance to fully mature. If you are starting your carnation indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Rosenberg. It might get as low as 20°F during the coldest months of winter.

Always keep in mind that USDA zone info for Rosenberg is an average and the actual date of last frost is different every year. Since half of the time in Rosenberg you get surprised by a frost after February 15 be ready to cover your carnation if you have a late frost.

USDA Zone Info for Rosenberg

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 Rosenberg

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