When to Plant Doronicum in Zone 9a

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant doronicum in Zone 9a should be determined by looking at the USDA zone info.

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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 just a bit 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 Zone 9a is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant doronicum and expect a good harvest is probably October. Any later than that and your doronicum may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your doronicum indoors.

Last Frost Date

The average date of last frost is February 15 in Zone 9a. It might get as low as 20°F during the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 9a and it is different every year. Half of the time in Zone 9a you get a frost after February 15 so make sure that you are ready to cover your doronicum if you have one of those late frosts.

USDA Zone Info for Zone 9a

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low20°F
Highest Expected Low25°F

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

Plants to Grow in Zone 9a

You may be interested in your other planting guides for Zone 9a.