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.

You can figure out when it's possible to plant sweetscented bedstraw in Philadelphia by reviewing the USDA zone info.

Planting Calendar for Sweetscented Bedstraw

Frost tolerance for sweetscented bedstraw:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since sweetscented bedstraw are barely cold tolerant you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant sweetscented bedstraw in Philadelphia 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 sweetscented bedstraw and expect a good harvest is probably August. Any later than that and your sweetscented bedstraw may not have a chance to fully mature. You can get started a few weeks earlier by starting your sweetscented bedstraw indoors.

Last Frost Date

The average date of last frost is March 15 in Philadelphia. In the coldest months of winter you can expect an average low temperature of 10°F.

It's important to remember that USDA zone info for Philadelphia may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Philadelphia there is a last frost after March 15 so make sure that you are prepared to protect your sweetscented bedstraw in the event of a late frost.

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.