One of the first steps you take when you are figuring out 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.

You should be able to figure out when it's the best time to plant summer savory by referring to the USDA zone info for Portsmouth.

Planting Calendar for Summer Savory

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

Summer Savory do ok in moderate cold which tells us that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant summer savory in Portsmouth 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 summer savory and expect a good harvest is probably August. Any later than that and your summer savory may not have a chance to fully mature. You can get started a few weeks earlier by starting your summer savory indoors.

Last Frost Date

The average date of last frost is March 15 in Portsmouth. You can expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that USDA zone info for Portsmouth is just an average and the actual date of last frost is different every year. Since half of the time in Portsmouth you get surprised by a frost after March 15 be ready to protect your summer savory in the event of a late frost.

USDA Zone Info for Portsmouth

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Portsmouth

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