One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when to plant phlox is to examine the USDA zone info for Dunellen.

Planting Calendar for Phlox

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

You can plant phlox just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant phlox in Dunellen 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 phlox and expect a good harvest is probably September. If you wait any later than that and your phlox may not have a chance to really do well. You can get started a little bit earlier by starting your phlox indoors.

Last Frost Date

The average date of last frost is April 15 in Dunellen. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Dunellen is an average the actual date of last frost is different every year. Half of the time in Dunellen you get a frost after April 15 so be sure to be ready to protect your phlox if you have one of those late frosts.

USDA Zone Info for Dunellen

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 Dunellen

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