The USDA Zone info is a great tool for gardeners to help us determine 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 Walnut Creek you can determine when it's the best time to plant morning glory by checking out the USDA zone info.

Planting Calendar for Morning Glory

Frost tolerance for morning glory:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since morning glory are not cold tolerant it's necessary 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 Walnut Creek is March. However, you really should wait until April 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 September. You probably don't want to wait any later than that or else your morning glory may not have a chance to grow to maturity. You can get started a little bit earlier by starting your morning glory indoors.

Last Frost Date

In Walnut Creek the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Walnut Creek is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Walnut Creek there is a last frost after February 15 so be sure to be ready to cover your morning glory in the event of a surprise late frost.

USDA Zone Info for Walnut Creek

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Walnut Creek

You may be interested in your other planting guides for Walnut Creek.