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.

The first chance to plant salvia in Princeton can be estimated by referring to the USDA zone info.

Planting Calendar for Salvia

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

Since salvia do ok in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

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

Last Frost Date

In Princeton the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Princeton is not always accurate the actual date of last frost will vary from year to year. Half of the time in Princeton you get a frost after April 15 so make sure that you are prepared to protect your salvia if you have a late frost.

USDA Zone Info for Princeton

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Princeton

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