One of the best tools that you have as gardeners to help us estimate 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 Zone 4b you can figure out when it's a good idea to plant dahlberg daisy by checking out the USDA zone info.

Planting Calendar for Dahlberg Daisy

Frost tolerance for dahlberg daisy:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Dahlberg Daisy do not do well in cold weather which means that it is important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant dahlberg daisy in Zone 4b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant dahlberg daisy and expect a good harvest is probably August. Any later than that and your dahlberg daisy may not have a chance to fully mature. If you are starting your dahlberg daisy indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Zone 4b is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Zone 4b there is a last frost after May 15 be ready to cover your dahlberg daisy in the event of a surprise 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.