One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Pittsburgh you can estimate when it's the best time to plant bower vine by referring to the USDA zone info.

Planting Calendar for Bower Vine

Frost tolerance for bower vine:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since bower vine require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant bower vine in Pittsburgh 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 bower vine and expect a good harvest is probably August. Any later than that and your bower vine may not have a chance to really do well. You can get started a couple of weeks earlier by starting your bower vine indoors.

Last Frost Date

The average date of last frost is April 15 in Pittsburgh. You can expect an average low temperature of -5°F in the coldest months of winter.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Pittsburgh and it is different every year. Half of the time in Pittsburgh there is a last frost after April 15 so make sure that you are ready to protect your bower vine in the event of one of those late frosts.

USDA Zone Info for Pittsburgh

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 Pittsburgh

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