One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Altoona should be used to estimate when it's a good idea to plant nicotiana.

Planting Calendar for Nicotiana

Frost tolerance for nicotiana:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since nicotiana are not cold tolerant you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant nicotiana in Altoona is May. However, you really should wait until June 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 really do well. You can get started a few weeks earlier by starting your nicotiana indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Altoona. In the coldest months of winter you can expect an average low temperature of -25°F.

Remember that USDA zone info for Altoona is just an average and the actual date of last frost will vary from year to year. Half of the time in Altoona you get surprised by a frost after May 15 so always be ready to protect your nicotiana in the event of one of those late frosts.

USDA Zone Info for Altoona

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Altoona

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