The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant guara in Philadelphia should be determined by referring to the USDA zone info.

Planting Calendar for Guara

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

Since guara require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant guara 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 guara and expect a good harvest is probably August. Any later than that and your guara may not have a chance to grow to maturity. If you are starting your guara indoors then you might be able to get away with starting them a few 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 USDA zone info for Philadelphia is 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 make sure that you are ready to protect your guara 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.