Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Sacramento should be reffered to in order 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.

Ageratum are not cold tolerant which means that you must wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant ageratum in Sacramento 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. If you wait any later than that and your ageratum may not have a chance to really do well. You can get started a few weeks earlier by starting your ageratum indoors.

Last Frost Date

The average date of last frost is February 15 in Sacramento. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Sacramento may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Sacramento last frost occurs after February 15 be ready to protect your ageratum in the event of one of those late frosts.

USDA Zone Info for Sacramento

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 Sacramento

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