One of the first steps you take when you are estimating 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 can figure out when it's possible to plant snapdragons in Marlborough by looking at the USDA zone info.

Planting Calendar for Snapdragons

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

Snapdragons do ok in some cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant snapdragons in Marlborough 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 snapdragons and expect a good harvest is probably September. You probably don't want to wait any later than that or else your snapdragons may not have a chance to really do well. You can get started a couple of weeks earlier by starting your snapdragons indoors.

Last Frost Date

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

Since the USDA zone info for Marlborough is an average the actual date of last frost changes from year to year. Half of the time in Marlborough you get surprised by a frost after April 15 so just be sure to be ready to protect your snapdragons if you have one of those late frosts.

USDA Zone Info for Marlborough

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 Marlborough

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