When to Plant Bachelor Buttons in Alton, IL

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Alton you will be able to estimate when it's the best time to plant bachelor buttons.


Planting Calendar for Bachelor Buttons

Frost tolerance for bachelor buttons: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Bachelor Buttons do well in moderate cold which tells us that you can plant them a little bit earlier than more sensitive plants.

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

The earliest that you can plant bachelor buttons in Alton is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant bachelor buttons and expect a good harvest is probably September. Any later than that and your bachelor buttons may not have a chance to really do well. Starting your bachelor buttons indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Alton the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Alton may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Alton you get a frost after April 15 be ready to protect your bachelor buttons if you have one of those late frosts.

USDA Zone Info for Alton

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 Alton

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