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.

In Rocky River you can estimate when it's possible to plant flax by checking out 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 can survive in mild cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant flax in Rocky River 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 really do well. Starting your flax indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Rocky River and it can change quite a bit from year to year. Half of the time in Rocky River there is a last frost after April 15 so always be ready to cover your flax in the event of one of those late frosts.

USDA Zone Info for Rocky River

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 Rocky River

You may be interested in your other planting guides for Rocky River.