One of the best tools that you have as gardeners to help us determine 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 opportunity to plant doronicum in Olean can be estimated by reviewing 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 just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant doronicum in Olean 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 grow to maturity. You can get started a couple of weeks earlier by starting your doronicum indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Olean. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Olean is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Olean it frosts late in the year after April 15 be ready to cover your doronicum if you have a surprise late frost.

USDA Zone Info for Olean

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Olean

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