One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when you can plant bower vine is to refer to the USDA zone info for Baltimore.

Planting Calendar for Bower Vine

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

It's probably a bad idea to plant bower vine until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant bower vine in Baltimore 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. You probably don't want to wait any later than that or else your bower vine may not have a chance to fully mature. Starting your bower vine indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Baltimore. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Baltimore is not always accurate the actual date of last frost changes from year to year. Half of the time in Baltimore it frosts late in the year after April 15 so just be sure to be ready to cover your bower vine in the event of one of those late frosts.

USDA Zone Info for Baltimore

Here is the info for USDA Zone 7b.

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

Plants to Grow in Baltimore

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