When to Plant Tagetes in Hillsboro, IL

One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant tagetes in Hillsboro should be estimated by checking out the USDA zone info.


Planting Calendar for Tagetes

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

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

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

The earliest that you can plant tagetes in Hillsboro 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 tagetes and expect a good harvest is probably August. You probably don't want to wait any later than that or else your tagetes may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your tagetes indoors.

Last Frost Date

The average date of last frost is April 15 in Hillsboro. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Hillsboro and it will vary from year to year. Half of the time in Hillsboro last frost occurs after April 15 so make sure that you are ready to cover your tagetes in the event of one of those late frosts.

USDA Zone Info for Hillsboro

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 Hillsboro

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