The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Norfolk you can determine when it's the best time to plant iresene by looking at the USDA zone info.

Planting Calendar for Iresene

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

Iresene require warm weather which means that it is necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant iresene in Norfolk 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. Starting your iresene indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Norfolk the average date of last frost happens on March 15. You can expect an average low temperature of 10°F in the coldest months of winter.

Remember that USDA zone info for Norfolk is just an average and the actual date of last frost will vary from year to year. Half of the time in Norfolk it frosts late in the year after March 15 so make sure that you are ready to cover your iresene in the event of a surprise late frost.

USDA Zone Info for Norfolk

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 Norfolk

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