The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant new zealand spinach in Watertown should be figured out by using the USDA zone info.

Planting Calendar for New Zealand spinach

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

Since new zealand spinach do well in moderate cold you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant new zealand spinach in Watertown 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 new zealand spinach and expect a good harvest is probably August. You probably don't want to wait any later than that or else your new zealand spinach may not have a chance to fully mature. Starting your new zealand spinach indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Watertown. You can expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Watertown is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Watertown there is a last frost after May 15 so always be ready to cover your new zealand spinach in the event of a surprise late frost.

USDA Zone Info for Watertown

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Watertown

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