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.

The earliest that you can plant lisianthus in Archbald can be figured out by referring to the USDA zone info.

Planting Calendar for Lisianthus

Frost tolerance for lisianthus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Lisianthus require warm weather which means that you must wait until it warms up after all chance of frost has passed before you can plant them.

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

The last month that you can plant lisianthus and expect a good harvest is probably August. If you wait any later than that and your lisianthus may not have a chance to really do well. Starting your lisianthus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Archbald 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 Archbald last frost occurs after April 15 so be sure to be ready to cover your lisianthus in the event of a surprise late frost.

USDA Zone Info for Archbald

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 Archbald

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