The USDA Zone info is a great tool for gardeners to help us estimate 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.

By looking at the USDA zone info for Harlingen you will be able to estimate when 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 are not cold tolerant which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant indian cress in Harlingen is March. However, you really should wait until April 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 September. Any later than that and your indian cress may not have a chance to really do well. Starting your indian cress indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Harlingen the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Harlingen is just an average the actual date of last frost will vary from year to year. Since half of the time in Harlingen last frost occurs after February 15 be ready to cover your indian cress in the event of a surprise late frost.

USDA Zone Info for Harlingen

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Harlingen

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