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

A way of getting a good idea when it's a good idea to plant alternaria is to consult the USDA zone info for Sweet Home.

Planting Calendar for Alternaria

Frost tolerance for alternaria:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant alternaria until after the last frost because they do not do well in cold weather.

The earliest that you can plant alternaria in Sweet Home 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 alternaria and expect a good harvest is probably August. If you wait any later than that and your alternaria may not have a chance to really do well. You can get started a few weeks earlier by starting your alternaria indoors.

Last Frost Date

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

Remember that USDA zone info for Sweet Home may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Sweet Home you get a frost after March 15 be ready to protect your alternaria if you have a surprise late frost.

USDA Zone Info for Sweet Home

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 Sweet Home

You may be interested in your other planting guides for Sweet Home.