The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when it's the best time to plant blue lace flowers by referring to the USDA zone info for Whitehall.

Planting Calendar for Blue Lace Flowers

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

Blue Lace Flowers do well in some cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant blue lace flowers in Whitehall 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 blue lace flowers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your blue lace flowers may not have a chance to really do well. Starting your blue lace flowers indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Whitehall the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Whitehall is not always accurate the actual date of last frost is different every year. Half of the time in Whitehall last frost occurs after April 15 so make sure that you are ready to cover your blue lace flowers if you have one of those late frosts.

USDA Zone Info for Whitehall

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Whitehall

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