The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. 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 estimate when it's possible to plant doronicum by checking out the USDA zone info for Newport.

Planting Calendar for Doronicum

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

Doronicum can survive in some cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant doronicum in Newport 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. If you wait any later than that and your doronicum may not have a chance to really do well. You can get started a couple of weeks earlier by starting your doronicum indoors.

Last Frost Date

The average date of last frost is March 15 in Newport. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Newport may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Newport last frost occurs after March 15 so make sure that you are prepared to cover your doronicum if you have a late frost.

USDA Zone Info for Newport

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Newport

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