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

The best time to plant sanvitalia in Somerville should be determined by checking out the USDA zone info.

Planting Calendar for Sanvitalia

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

Sanvitalia tend to make it in some cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant sanvitalia in Somerville 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 sanvitalia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sanvitalia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your sanvitalia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Somerville. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Somerville is an average the actual date of last frost is different every year. Half of the time in Somerville you get a frost after April 15 so always be ready to protect your sanvitalia in the event of one of those late frosts.

USDA Zone Info for Somerville

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Somerville

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