Before planting it is a good idea to find your USDA Zone info to estimate 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.

By referring to the USDA zone info for Columbus you should be able to figure out when it's possible to plant indian cress.

Planting Calendar for Indian cress

Frost tolerance for indian cress:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Indian cress do not do well in cold weather which tells us that it's important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant indian cress in Columbus 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 indian cress and expect a good harvest is probably August. If you wait any later than that and your indian cress may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your indian cress indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Columbus. It might get as low as 15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Columbus may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Columbus you get a frost after March 15 so make sure that you are ready to cover your indian cress in the event of a surprise late frost.

USDA Zone Info for Columbus

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

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

Plants to Grow in Columbus

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