When to Plant Ageratum in Munster, IN

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.

In Munster you can estimate when it's possible to plant ageratum by using the USDA zone info.

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Planting Calendar for Ageratum

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

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

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant ageratum
Possibly ok, but a risky time to plant ageratum
Probably not a good time to plant ageratum

The earliest that you can plant ageratum in Munster 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 fully mature. If you are starting your ageratum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Munster and it changes from year to year. Half of the time in Munster it frosts late in the year after April 15 so make sure that you are ready to protect your ageratum in the event of one of those late frosts.

USDA Zone Info for Munster

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 Munster

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