One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Modesto you should be able to estimate when it's possible to plant morning glory.

Planting Calendar for Morning Glory

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

It's probably not a good idea to plant morning glory until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant morning glory in Modesto 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 really do well. You can get started a few weeks earlier by starting your morning glory indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Modesto. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Modesto is an average the actual date of last frost is different every year. Since half of the time in Modesto last frost occurs after February 15 be ready to protect your morning glory if you have one of those late frosts.

USDA Zone Info for Modesto

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 Modesto

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