One of the best tools that you have as gardeners to help us estimate 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.

You should be able to determine when it's the best time to plant anemone by checking out the USDA zone info for Philadelphia.

Planting Calendar for Anemone

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

Anemone can survive in a little bit of cold which tells us that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant anemone in Philadelphia 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 anemone and expect a good harvest is probably September. If you wait any later than that and your anemone may not have a chance to fully mature. Starting your anemone indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Philadelphia. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Philadelphia may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Philadelphia you get surprised by a frost after March 15 so make sure that you are ready to protect your anemone in the event of one of those late frosts.

USDA Zone Info for Philadelphia

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Philadelphia

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