One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's the best time to plant ageratum by looking at the USDA zone info for Vine Grove.

Planting Calendar for Ageratum

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

Ageratum require warm weather which tells us that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant ageratum in Vine Grove 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. Any later than that and your ageratum may not have a chance to grow to maturity. If you are starting your ageratum indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Vine Grove. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Vine Grove may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Vine Grove you get surprised by a frost after April 15 be ready to protect your ageratum in the event of a surprise late frost.

USDA Zone Info for Vine Grove

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Vine Grove

You may be interested in your other planting guides for Vine Grove.