Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Torrington it's a good idea to estimate when it's the best time to plant doronicum.

Planting Calendar for Doronicum

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

Since doronicum are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant doronicum in Torrington 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 doronicum and expect a good harvest is probably August. Any later than that and your doronicum may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your doronicum indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Torrington. In the coldest months of winter you can expect an average low temperature of -25°F.

Keep in mind that USDA zone info for Torrington is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Torrington you get surprised by a frost after May 15 be ready to cover your doronicum if you have a late frost.

USDA Zone Info for Torrington

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 Torrington

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