One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's possible to plant delphinium in Wellsville by looking at the USDA zone info.

Planting Calendar for Delphinium

Frost tolerance for delphinium:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Delphinium can survive in mild cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant delphinium in Wellsville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant delphinium and expect a good harvest is probably August. Any later than that and your delphinium may not have a chance to grow to maturity. If you are starting your delphinium indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Wellsville. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Wellsville may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Wellsville it frosts late in the year after April 15 so be sure to be ready to cover your delphinium if you have one of those late frosts.

USDA Zone Info for Wellsville

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 Wellsville

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