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

A common way of making a decision about when it's a good idea to plant morning glory is to refer to the USDA zone info for Coronado.

Planting Calendar for Morning Glory

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

You really shouldn't plant morning glory until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant morning glory in Coronado is February. However, you really should wait until March 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. Any later than that and your morning glory may not have a chance to grow to maturity. Starting your morning glory indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Coronado. You should expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Coronado may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Coronado you get a frost after January 31 so always be ready to protect your morning glory if you have a surprise late frost.

USDA Zone Info for Coronado

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Coronado

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