When to Plant Bower Vine in Maple Valley, WA

The USDA Zone info is a great tool for gardeners to help us figure out 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.

In Maple Valley you can figure out when it's a good idea to plant bower vine by checking out 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.

You can not plant bower vine until after the last frost has passed because they are not cold tolerant.

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

The earliest that you can plant bower vine in Maple Valley 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. If you are starting your bower vine indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Maple Valley. In the coldest months of winter you can expect an average low temperature of 15°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Maple Valley and it is different every year. Half of the time in Maple Valley you get surprised by a frost after March 15 so always be ready to protect your bower vine if you have a surprise late frost.

USDA Zone Info for Maple Valley

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low15°F
Highest Expected Low20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Maple Valley

You may be interested in your other planting guides for Maple Valley.