Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant achimenes in Rosemead should be figured out by checking out the USDA zone info.

Planting Calendar for Achimenes

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

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 Rosemead 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. You probably don't want to wait any later than that or else your achimenes may not have a chance to fully mature. Starting your achimenes indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Rosemead. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Rosemead is not always accurate the actual date of last frost changes from year to year. Since half of the time in Rosemead last frost occurs after January 31 be ready to cover your achimenes in the event of a late frost.

USDA Zone Info for Rosemead

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 Rosemead

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