One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of determining when it's the best time to plant angel's trumpets is to check out the USDA zone info for Omaha.

Planting Calendar for Angel's Trumpets

Frost tolerance for angel's trumpets:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Angel's Trumpets do ok in a tiny bit of cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant angel's trumpets in Omaha 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 angel's trumpets and expect a good harvest is probably August. If you wait any later than that and your angel's trumpets may not have a chance to really do well. Starting your angel's trumpets indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Omaha. It might get as low as -15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Omaha is an average and the actual date of last frost changes from year to year. Half of the time in Omaha you get surprised by a frost after April 15 so just be sure to be ready to cover your angel's trumpets in the event of a surprise late frost.

USDA Zone Info for Omaha

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 Omaha

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