One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's possible to plant begonias by referring to the USDA zone info for Atwater.

Planting Calendar for Begonias

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

Begonias do not do well in cold weather which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant begonias in Atwater 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 begonias and expect a good harvest is probably September. If you wait any later than that and your begonias may not have a chance to fully mature. Starting your begonias indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Atwater. You should expect an average low temperature of 20°F in the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Atwater and it changes from year to year. Half of the time in Atwater you get surprised by a frost after February 15 so just be sure to be ready to cover your begonias in the event of a late frost.

USDA Zone Info for Atwater

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Atwater

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