Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Hartford you should be able to estimate when to plant fanflower.

Planting Calendar for Fanflower

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

You really shouldn't plant fanflower until after the last frost because they do not do well in cold weather.

The earliest that you can plant fanflower in Hartford 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. You probably don't want to wait any later than that or else your fanflower may not have a chance to grow to maturity. Starting your fanflower indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Hartford. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Hartford may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Hartford you get a frost after April 15 so just be sure to be ready to cover your fanflower in the event of one of those late frosts.

USDA Zone Info for Hartford

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Hartford

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