One of the first steps you take when you are estimating 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 Lock Haven should be reffered to in order to estimate when you can plant alternaria.

Planting Calendar for Alternaria

Frost tolerance for alternaria:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant alternaria until after the last frost has passed because they require warm weather.

The earliest that you can plant alternaria in Lock Haven 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. You probably don't want to wait any later than that or else your alternaria may not have a chance to really do well. You can get started a little bit earlier by starting your alternaria indoors.

Last Frost Date

On average the last frost is on April 15 in Lock Haven. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Lock Haven may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Lock Haven you get a frost after April 15 be ready to cover your alternaria if you have a surprise late frost.

USDA Zone Info for Lock Haven

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Lock Haven

You may be interested in your other planting guides for Lock Haven.