When to Plant Stoneseed in Altoona, PA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's a good idea to plant stoneseed in Altoona by referring to the USDA zone info.


Planting Calendar for Stoneseed

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

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

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant stoneseed
Possibly ok, but a risky time to plant stoneseed
Probably not a good time to plant stoneseed

The earliest that you can plant stoneseed 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 stoneseed and expect a good harvest is probably August. Any later than that and your stoneseed may not have a chance to fully mature. Starting your stoneseed indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Altoona and it can change quite a bit from year to year. Since half of the time in Altoona there is a last frost after April 15 be ready to protect your stoneseed if you have a surprise 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.