One of the first steps you take when you are making a decision about 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 should be able to figure out when to plant tritoma by checking out the USDA zone info for Brookings.

Planting Calendar for Tritoma

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

Since tritoma are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant tritoma in Brookings 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 tritoma and expect a good harvest is probably August. Any later than that and your tritoma may not have a chance to grow to maturity. If you are starting your tritoma indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Brookings. In the coldest months of winter you can expect an average low temperature of -25°F.

Since the USDA zone info for Brookings is an average the actual date of last frost will vary from year to year. Half of the time in Brookings there is a last frost after May 15 so just be sure to be ready to protect your tritoma in the event of a surprise late frost.

USDA Zone Info for Brookings

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Brookings

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