Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Coraopolis you can determine when it's the best time to plant flax by reviewing the USDA zone info.

Planting Calendar for Flax

Frost tolerance for flax:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Flax do well in moderate cold which tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant flax in Coraopolis 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 flax and expect a good harvest is probably September. Any later than that and your flax may not have a chance to grow to maturity. If you are starting your flax indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Coraopolis. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Coraopolis may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Coraopolis you get surprised by a frost after April 15 so make sure that you are ready to cover your flax in the event of a surprise late frost.

USDA Zone Info for Coraopolis

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 Coraopolis

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