When to Plant Tritoma in Zone 2a

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.

By reviewing the USDA zone info for Zone 2a you should be able to figure out when it's the best time to plant tritoma.

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Planting Calendar for Tritoma

Frost tolerance for tritoma: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

You can plant tritoma earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant tritoma
Possibly ok, but a risky time to plant tritoma
Probably not a good time to plant tritoma

The earliest that you can plant tritoma in Zone 2a is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant tritoma and expect a good harvest is probably August. You probably don't want to wait any later than that or else your tritoma may not have a chance to fully mature. If you are starting your tritoma indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Zone 2a. In the coldest months of winter you should expect an average low temperature of -50°F.

It's important to remember that USDA zone info for Zone 2a is an average and the actual date of last frost will vary from year to year. Since half of the time in Zone 2a you get a frost after May 15 be ready to cover your tritoma if you have a late frost.

USDA Zone Info for Zone 2a

Here is the info for USDA Zone 2a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-50°F
Highest Expected Low-45°F

This means that on a really cold year, the coldest it will get is -50°F. On most years you should be prepared to experience lows near -45°F.

Plants to Grow in Zone 2a

You may be interested in your other planting guides for Zone 2a.