When to Plant Doronicum in Manchester, NH

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant doronicum in Manchester should be determined by using 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.

You can plant doronicum a little earlier in the year because they do well in moderate 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 Manchester 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. You probably don't want to wait any later than that or else your doronicum may not have a chance to fully mature. If you are starting your doronicum indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Manchester. It might get as low as -15°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Manchester and it will vary from year to year. Since half of the time in Manchester last frost occurs after April 15 be ready to protect your doronicum if you have a surprise late frost.

USDA Zone Info for Manchester

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 Manchester

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