One of the best tools that you have as gardeners to help us estimate 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.

It's a good idea to determine when it's possible to plant iresene by using the USDA zone info for Lancaster.

Planting Calendar for Iresene

Frost tolerance for iresene:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant iresene until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant iresene in Lancaster 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 iresene and expect a good harvest is probably August. You probably don't want to wait any later than that or else your iresene may not have a chance to really do well. You can get started a little bit earlier by starting your iresene indoors.

Last Frost Date

The average date of last frost is March 15 in Lancaster. You should expect an average low temperature of 10°F in the coldest months of winter.

It's important to remember that USDA zone info for Lancaster is an average and the actual date of last frost is different every year. Half of the time in Lancaster last frost occurs after March 15 so just be sure to be ready to protect your iresene in the event of a late frost.

USDA Zone Info for Lancaster

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Lancaster

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