One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Mason City you can figure out when you can plant shasta daisys by looking at the USDA zone info.

Planting Calendar for Shasta Daisys

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

Shasta Daisys are moderately cold tolerant which tells us that you can get them planted earlier than more sensitive plants.

The earliest that you can plant shasta daisys in Mason City 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 shasta daisys and expect a good harvest is probably September. Any later than that and your shasta daisys may not have a chance to fully mature. Starting your shasta daisys indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Mason City is just an average the actual date of last frost will vary from year to year. Half of the time in Mason City you get a frost after April 15 so make sure that you are prepared to cover your shasta daisys in the event of a late frost.

USDA Zone Info for Mason City

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 Mason City

You may be interested in your other planting guides for Mason City.