One of the first steps you take when you are determining your gardening schedule is find your 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.

A way of making a decision about when it's possible to plant shasta daisys is to check out the USDA zone info for Zone 4b.

Planting Calendar for Shasta Daisys

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

Since shasta daisys do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant shasta daisys in Zone 4b 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 shasta daisys and expect a good harvest is probably August. Any later than that and your shasta daisys may not have a chance to grow to maturity. If you are starting your shasta daisys indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Zone 4b. In the coldest months of winter you should expect an average low temperature of -25°F.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Zone 4b and it is different every year. Half of the time in Zone 4b it frosts late in the year after May 15 so be sure to be ready to cover your shasta daisys if you have a late frost.

USDA Zone Info for Zone 4b

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 Zone 4b

You may be interested in your other planting guides for Zone 4b.