One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when to plant achimenes is to look at the USDA zone info for Lyons.

Planting Calendar for Achimenes

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

You can not plant achimenes until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant achimenes in Lyons is April. However, you really should wait until May 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. You probably don't want to wait any later than that or else 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

The average date of last frost is April 15 in Lyons. In the coldest months of winter you can expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Lyons is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Lyons you get a frost after April 15 so be sure to be ready to protect your achimenes in the event of a late frost.

USDA Zone Info for Lyons

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Lyons

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