When to Plant Bower Vine in Gladstone, OR

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Gladstone it's a good idea to figure out when to plant bower vine.

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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 do not do well in cold weather it is necessary to wait until after all chance of frost has passed before you can plant them.

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 Gladstone 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. If you wait any later than that and your bower vine may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your bower vine indoors.

Last Frost Date

On average the last frost has passed is on March 15 in Gladstone. You can expect an average low temperature of 15°F in the coldest months of winter.

Keep in mind that USDA zone info for Gladstone is an average and the actual date of last frost will vary from year to year. Since half of the time in Gladstone last frost occurs after March 15 be ready to protect your bower vine if you have a late frost.

USDA Zone Info for Gladstone

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 Gladstone

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