One of the best tools that you have as gardeners to help us estimate 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.

By referring to the USDA zone info for Zone 1b it's possible to determine when it's possible to plant angelonia.

Planting Calendar for Angelonia

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

You can plant angelonia a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant angelonia in Zone 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant angelonia and expect a good harvest is probably July. You probably don't want to wait any later than that or else your angelonia may not have a chance to grow to maturity. If you are starting your angelonia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 1b the average date of last frost happens on June 15. You should expect an average low temperature of -55°F in the coldest months of winter.

Always keep in mind that USDA zone info for Zone 1b is not always accurate and the actual date of last frost changes from year to year. Half of the time in Zone 1b you get a frost after June 15 so be sure to be ready to cover your angelonia if you have one of those late frosts.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)	June 15
Average Date of First Frost (fall)	July 15
Lowest Expected Low	-55°F
Highest Expected Low	-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in your other planting guides for Zone 1b.