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.

The first chance to plant achimenes in Buffalo can be determined by looking at the USDA zone info.

Planting Calendar for Achimenes

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

You really shouldn't plant achimenes until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant achimenes in Buffalo is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant achimenes and expect a good harvest is probably August. Any later than that and your achimenes may not have a chance to really do well. Starting your achimenes indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Buffalo the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Just be sure to 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 Buffalo and it changes from year to year. Since half of the time in Buffalo you get a frost after May 15 be ready to cover your achimenes if you have a late frost.

USDA Zone Info for Buffalo

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Buffalo

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