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When to Plant Doronicum in South Portland, ME

Before planting it is a good idea to find your USDA Zone info to determine your garden 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 doronicum in South Portland should be determined by checking out the USDA zone info.


Planting Calendar for Doronicum

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

Doronicum are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than plants that are more sensitive to the cold.

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

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

Last Frost Date

On average all chance of frost has passed is on April 15 in South Portland. In the coldest months of winter you can expect an average low temperature of -15°F.

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for South Portland and it can change quite a bit from year to year. Since half of the time in South Portland you get surprised by a frost after April 15 be ready to cover your doronicum in the event of a surprise late frost.

USDA Zone Info for South Portland

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in South Portland

You may be interested in your other planting guides for South Portland.