Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when to plant angelonia by checking out the USDA zone info for Riverdale.

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.

Angelonia are barely cold tolerant which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant angelonia in Riverdale 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 angelonia and expect a good harvest is probably August. If you wait any later than that and your angelonia may not have a chance to fully mature. Starting your angelonia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Riverdale the average date of last frost happens on March 15. It might get as low as 10°F during the coldest months of winter.

It's important to remember that USDA zone info for Riverdale may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Riverdale it frosts late in the year after March 15 so be sure to be ready to cover your angelonia if you have one of those late frosts.

USDA Zone Info for Riverdale

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Riverdale

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