One of the best tools that you have as gardeners to help us estimate 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.

You should be able to figure out when it's possible to plant winter savory by using the USDA zone info for Romulus.

Planting Calendar for Winter Savory

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

Winter Savory do well in moderate cold which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant winter savory in Romulus 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 winter savory and expect a good harvest is probably September. You probably don't want to wait any later than that or else your winter savory may not have a chance to fully mature. Starting your winter savory indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Romulus. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Romulus may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Romulus last frost occurs after April 15 so always be ready to cover your winter savory in the event of one of those late frosts.

USDA Zone Info for Romulus

Here is the info for USDA Zone 6a.

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

Plants to Grow in Romulus

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