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.

One way of figuring out when it's possible to plant fanflower is to use the USDA zone info for Arvada.

Planting Calendar for Fanflower

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

Fanflower do not do well in cold weather which tells us that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant fanflower in Arvada 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 fanflower and expect a good harvest is probably August. Any later than that and your fanflower may not have a chance to fully mature. You can get started a few weeks earlier by starting your fanflower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Arvada. You can expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Arvada may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Arvada last frost occurs after April 15 so just be sure to be ready to protect your fanflower if you have one of those late frosts.

USDA Zone Info for Arvada

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Arvada

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