Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Streetsboro you will be able to estimate when to plant ageratum.

Planting Calendar for Ageratum

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

You should not plant ageratum until after the last frost has passed because they require warm weather.

The earliest that you can plant ageratum in Streetsboro 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 ageratum and expect a good harvest is probably August. If you wait any later than that and your ageratum may not have a chance to really do well. Starting your ageratum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Streetsboro. In the coldest months of winter you should expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Streetsboro may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Streetsboro it frosts late in the year after April 15 so always be ready to cover your ageratum if you have one of those late frosts.

USDA Zone Info for Streetsboro

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 Streetsboro

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