One of the first steps you take when you are estimating your gardening schedule is find your 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 making a decision about when it's the best time to plant summer savory is to check out the USDA zone info for Ottawa.

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 well in very little cold which tells us that you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant summer savory in Ottawa 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. You probably don't want to wait any later than that or else your summer savory may not have a chance to grow to maturity. You can get started a little bit earlier by starting your summer savory indoors.

Last Frost Date

On average the last frost is on April 15 in Ottawa. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Ottawa is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Ottawa last frost occurs after April 15 be ready to protect your summer savory in the event of one of those late frosts.

USDA Zone Info for Ottawa

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 Ottawa

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