One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

In Florence you can estimate when it's possible to plant achimenes by referring to the USDA zone info.

Planting Calendar for Achimenes

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

It's probably a bad idea to plant achimenes until after all chance of frost has passed because they require warm weather.

The earliest that you can plant achimenes in Florence 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 achimenes and expect a good harvest is probably September. Any later than that and your achimenes may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your achimenes indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Florence. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Florence is not always accurate the actual date of last frost is different every year. Since half of the time in Florence it frosts late in the year after February 15 be ready to protect your achimenes in the event of one of those late frosts.

USDA Zone Info for Florence

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 Florence

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