One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

You can estimate when you can plant chamomile in Winona by using the USDA zone info.

Planting Calendar for Chamomile

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

You can plant chamomile a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant chamomile in Winona is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant chamomile and expect a good harvest is probably August. Any later than that and your chamomile may not have a chance to fully mature. You can get started a little bit earlier by starting your chamomile indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Winona. It might get as low as -25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Winona is just an average and the actual date of last frost changes from year to year. Half of the time in Winona it frosts late in the year after May 15 so just be sure to be ready to cover your chamomile if you have one of those late frosts.

USDA Zone Info for Winona

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Winona

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