The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Robstown you should be able to determine when it's the best time to plant nicotiana.

Planting Calendar for Nicotiana

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

Nicotiana are not cold tolerant which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant nicotiana in Robstown 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 nicotiana and expect a good harvest is probably September. Any later than that and your nicotiana may not have a chance to really do well. You can get started a little bit earlier by starting your nicotiana indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Robstown. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Robstown is just an average the actual date of last frost is different every year. Half of the time in Robstown last frost occurs after February 15 so make sure that you are ready to protect your nicotiana if you have a surprise late frost.

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.