One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant welsh onion in Mahanoy City can be figured out by checking out the USDA zone info.

Planting Calendar for Welsh onion

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

Welsh onion do ok in some cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant welsh onion in Mahanoy City 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 welsh onion and expect a good harvest is probably August. Any later than that and your welsh onion may not have a chance to fully mature. You can get started a little bit earlier by starting your welsh onion indoors.

Last Frost Date

The average date of last frost is April 15 in Mahanoy City. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Mahanoy City is not always accurate the actual date of last frost will vary from year to year. Half of the time in Mahanoy City there is a last frost after April 15 so make sure that you are prepared to cover your welsh onion in the event of a surprise late frost.

USDA Zone Info for Mahanoy City

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 Mahanoy City

You may be interested in your other planting guides for Mahanoy City.