The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. 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 determining when it's a good idea to plant argyranthemum is to examine the USDA zone info for Mahomet.

Planting Calendar for Argyranthemum

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

It's not a good idea to plant argyranthemum until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant argyranthemum in Mahomet 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 argyranthemum and expect a good harvest is probably August. Any later than that and your argyranthemum may not have a chance to fully mature. If you are starting your argyranthemum indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Mahomet. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Mahomet is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Mahomet you get a frost after April 15 so make sure that you are prepared to protect your argyranthemum in the event of a late frost.

USDA Zone Info for Mahomet

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Mahomet

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