One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for Gig Harbor can be looked at to estimate when it's a good idea to plant morning glory.

Planting Calendar for Morning Glory

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

Since morning glory are not cold tolerant you need to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant morning glory in Gig Harbor 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 morning glory and expect a good harvest is probably August. Any later than that and your morning glory may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your morning glory indoors.

Last Frost Date

The average date of last frost is March 15 in Gig Harbor. It might get as low as 15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Gig Harbor may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Gig Harbor you get a frost after March 15 so make sure that you are prepared to protect your morning glory in the event of a surprise late frost.

USDA Zone Info for Gig Harbor

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 Low	15°F
Highest Expected Low	20°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 Gig Harbor

You may be interested in your other planting guides for Gig Harbor.