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.

You will be able to estimate when it's possible to plant achillea by looking at the USDA zone info for Bridgeville.

Planting Calendar for Achillea

Frost tolerance for achillea:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Achillea do ok in pretty solid cold which means that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant achillea in Bridgeville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant achillea and expect a good harvest is probably September. Any later than that and your achillea may not have a chance to really do well. If you are starting your achillea indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Bridgeville. It might get as low as -5°F during the coldest months of winter.

Remember that USDA zone info for Bridgeville is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Bridgeville last frost occurs after April 15 so make sure that you are prepared to protect your achillea in the event of a late frost.

USDA Zone Info for Bridgeville

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 Bridgeville

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