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 Banning should be read to determine when you can plant ageratum.

Planting Calendar for Ageratum

Frost tolerance for ageratum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Ageratum require warm weather which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant ageratum in Banning 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 ageratum and expect a good harvest is probably September. Any later than that and your ageratum may not have a chance to really do well. You can get started a couple of weeks earlier by starting your ageratum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Banning. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Banning is just an average the actual date of last frost is different every year. Half of the time in Banning last frost occurs after February 15 so make sure that you are ready to protect your ageratum if you have a surprise late frost.

USDA Zone Info for Banning

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 Banning

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