One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's possible to plant indian cress is to consult the USDA zone info for Hayden.

Planting Calendar for Indian cress

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

Since indian cress do not do well in cold weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant indian cress in Hayden 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. Any later than that and your indian cress may not have a chance to fully mature. You can get started a little bit earlier by starting your indian cress indoors.

Last Frost Date

In Hayden the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Hayden is just an average the actual date of last frost is different every year. Half of the time in Hayden you get a frost after April 15 so make sure that you are prepared to cover your indian cress in the event of a surprise late frost.

USDA Zone Info for Hayden

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 Hayden

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