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

You can figure out when it's possible to plant radishes in Ashtabula by using the USDA zone info.

Planting Calendar for Radishes

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

Since radishes do well in cold you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant radishes in Ashtabula 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 radishes and expect a good harvest is probably September. Any later than that and your radishes may not have a chance to really do well. You can get started a couple of weeks earlier by starting your radishes indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Ashtabula is not always accurate and the actual date of last frost is different every year. Since half of the time in Ashtabula it frosts late in the year after April 15 be ready to protect your radishes in the event of one of those late frosts.

USDA Zone Info for Ashtabula

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 Ashtabula

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