Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Ottumwa it's a good idea to estimate when it's the best time to plant shasta daisys.

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 start planting them earlier than other frost tender plants.

The earliest that you can plant shasta daisys in Ottumwa 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. If you wait 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 few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Ottumwa may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Ottumwa it frosts late in the year after April 15 be ready to protect your shasta daisys in the event of a late frost.

USDA Zone Info for Ottumwa

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Ottumwa

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