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.

The first opportunity to plant sweet sultan in Lake Mills should be figured out by referring to the USDA zone info.

Planting Calendar for Sweet Sultan

Frost tolerance for sweet sultan:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Sweet Sultan are barely cold tolerant which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant sweet sultan in Lake Mills 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 sweet sultan and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet sultan may not have a chance to fully mature. Starting your sweet sultan indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Lake Mills. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Lake Mills is just an average the actual date of last frost is different every year. Half of the time in Lake Mills last frost occurs after April 15 so make sure that you are ready to cover your sweet sultan in the event of a late frost.

USDA Zone Info for Lake Mills

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Lake Mills

You may be interested in your other planting guides for Lake Mills.