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.

A way of estimating when to plant strawflowers is to look at the USDA zone info for Penns Grove.

Planting Calendar for Strawflowers

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

Strawflowers can survive in very little cold which tells us that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Penns Grove. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Penns Grove may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Penns Grove you get surprised by a frost after April 15 be ready to cover your strawflowers in the event of a late frost.

USDA Zone Info for Penns Grove

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Penns Grove

You may be interested in your other planting guides for Penns Grove.