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.

The best time to plant snow peas in Altoona should be figured out by checking out the USDA zone info.

Planting Calendar for Snow peas

Frost tolerance for snow peas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since snow peas are one of those plants that can tolerate quite a bit of cold weather you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant snow peas in Altoona 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 snow peas and expect a good harvest is probably August. Any later than that and your snow peas may not have a chance to fully mature. You can get started a little bit earlier by starting your snow peas indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Altoona. It might get as low as -25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Altoona is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Altoona you get surprised by a frost after May 15 be ready to protect your snow peas 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.