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.

A common way of figuring out when it's the best time to plant achimenes is to consult the USDA zone info for San Carlos.

Planting Calendar for Achimenes

Frost tolerance for achimenes:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since achimenes do not do well in cold weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant achimenes in San Carlos 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 achimenes and expect a good harvest is probably September. Any later than that and your achimenes may not have a chance to fully mature. You can get started a little bit earlier by starting your achimenes indoors.

Last Frost Date

The average date of last frost is January 31 in San Carlos. In the coldest months of winter you can expect an average low temperature of 30°F.

Remember that USDA zone info for San Carlos is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in San Carlos you get a frost after January 31 so make sure that you are ready to protect your achimenes in the event of a surprise late frost.

USDA Zone Info for San Carlos

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Carlos

You may be interested in your other planting guides for San Carlos.