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When to Plant Indian cress in Knoxville, IA

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant indian cress in Knoxville should be estimated by referring to the USDA zone info.


Planting Calendar for Indian cress

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

Indian cress do not do well in cold weather which tells us that it's necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant indian cress
Possibly ok, but a risky time to plant indian cress
Probably not a good time to plant indian cress

The earliest that you can plant indian cress in Knoxville 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. You probably don't want to wait any later than that or else your indian cress may not have a chance to grow to maturity. If you are starting your indian cress indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Knoxville the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Knoxville and it changes from year to year. Half of the time in Knoxville it frosts late in the year after April 15 so just be sure to be ready to cover your indian cress if you have a late frost.

USDA Zone Info for Knoxville

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°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 -10°F.

Plants to Grow in Knoxville

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