One of the first steps you take when you are making a decision about your gardening schedule is find your 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 the best time to plant achillea by referring to the USDA zone info for Alva.

Planting Calendar for Achillea

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

Achillea can survive in cold weather which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant achillea in Alva 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. If you wait any later than that and your achillea may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your achillea indoors.

Last Frost Date

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

Since the USDA zone info for Alva is just an average the actual date of last frost is different every year. Half of the time in Alva you get a frost after April 15 so always be ready to cover your achillea in the event of a late frost.

USDA Zone Info for Alva

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 Alva

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