One of the first steps you take when you are making a decision about 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.

By looking at the USDA zone info for Philadelphia it's a good idea to estimate when it's a good idea to plant dahlberg daisy.

Planting Calendar for Dahlberg Daisy

Frost tolerance for dahlberg daisy:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant dahlberg daisy until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant dahlberg daisy in Philadelphia is April. However, you really should wait until May 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. You probably don't want to wait any later than that or else your dahlberg daisy may not have a chance to fully mature. Starting your dahlberg daisy 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 Philadelphia. In the coldest months of winter you should expect an average low temperature of 0°F.

It's important to remember that USDA zone info for Philadelphia is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Philadelphia you get a frost after April 15 so always be ready to protect your dahlberg daisy if you have a surprise late frost.

USDA Zone Info for Philadelphia

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Philadelphia

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