One of the first steps you take when you are determining your gardening schedule is find your 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 figuring out when it's the best time to plant angel's trumpets is to refer to the USDA zone info for Saco.

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 can survive in some 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 Saco 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. Any later than that and your angel's trumpets may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your angel's trumpets indoors.

Last Frost Date

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

Since the USDA zone info for Saco is not always accurate the actual date of last frost changes from year to year. Since half of the time in Saco it frosts late in the year after April 15 be ready to protect your angel's trumpets if you have a surprise late frost.

USDA Zone Info for Saco

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 Saco

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