Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 can be looked at to determine when it's a good idea to plant trachelium.

Planting Calendar for Trachelium

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

Since trachelium do not do well in cold weather it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant trachelium in Altoona 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 trachelium and expect a good harvest is probably August. Any later than that and your trachelium may not have a chance to grow to maturity. Starting your trachelium indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Altoona. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Altoona may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Altoona there is a last frost after April 15 be ready to cover your trachelium in the event of a late frost.

USDA Zone Info for Altoona

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Altoona

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