One of the first steps you take when you are figuring out 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.

The USDA zone info for Kelso can be read to figure out 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.

Since nicotiana require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant nicotiana in Kelso is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is March 15 in Kelso. You can expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Kelso is just an average and the actual date of last frost changes from year to year. Half of the time in Kelso you get surprised by a frost after March 15 so always be ready to cover your nicotiana if you have one of those late frosts.

USDA Zone Info for Kelso

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Kelso

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