One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to determine when to plant ornamental grasses by reviewing the USDA zone info for Port Jefferson.

Planting Calendar for Ornamental Grasses

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

Since ornamental grasses are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant ornamental grasses in Port Jefferson 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 ornamental grasses and expect a good harvest is probably August. Any later than that and your ornamental grasses may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your ornamental grasses indoors.

Last Frost Date

The average date of last frost is April 15 in Port Jefferson. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Port Jefferson is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Port Jefferson you get a frost after April 15 be ready to protect your ornamental grasses in the event of a surprise late frost.

USDA Zone Info for Port Jefferson

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 Port Jefferson

You may be interested in your other planting guides for Port Jefferson.