One of the first steps you take when you are making a decision about 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.

In New Martinsville you can determine when it's possible to plant delphinium by checking out 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 a bit earlier in the year than more sensitive plants.

The earliest that you can plant delphinium in New Martinsville 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. You probably don't want to wait any later than that or else your delphinium may not have a chance to really do well. Starting your delphinium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in New Martinsville. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for New Martinsville 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 New Martinsville there is a last frost after April 15 so always be ready to cover your delphinium in the event of a surprise late frost.

USDA Zone Info for New Martinsville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in New Martinsville

You may be interested in your other planting guides for New Martinsville.