One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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 common way of making a decision about when it's a good idea to plant livingstone daisy is to refer to the USDA zone info for Philadelphia.

Planting Calendar for Livingstone Daisy

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

Since livingstone daisy require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant livingstone 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 livingstone daisy and expect a good harvest is probably August. You probably don't want to wait any later than that or else your livingstone daisy may not have a chance to really do well. If you are starting your livingstone daisy indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Philadelphia. You should expect an average low temperature of 0°F in the coldest months of winter.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Philadelphia and it can change quite a bit from year to year. Since half of the time in Philadelphia last frost occurs after April 15 be ready to protect your livingstone daisy if you have a 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.