The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant bower vine in Mount Washington can be estimated by looking at the USDA zone info.

Planting Calendar for Bower Vine

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

Since bower vine are not cold tolerant you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant bower vine in Mount Washington 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 fully mature. If you are starting your bower vine indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Mount Washington. In the coldest months of winter you can expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Mount Washington is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Mount Washington last frost occurs after April 15 so make sure that you are ready to protect your bower vine in the event of a surprise late frost.

USDA Zone Info for Mount Washington

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 Mount Washington

You may be interested in your other planting guides for Mount Washington.