One of the first steps you take when you are making a decision about 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 estimating when it's a good idea to plant angelonia is to refer to the USDA zone info for Alpena.

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.

Since angelonia do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant angelonia in Alpena 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. Any later than that and your angelonia may not have a chance to really do well. You can get started a few weeks earlier by starting your angelonia indoors.

Last Frost Date

The average date of last frost is April 15 in Alpena. You should expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Alpena 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 Alpena it frosts late in the year after April 15 so make sure that you are prepared to cover your angelonia if you have one of those late frosts.

USDA Zone Info for Alpena

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 Alpena

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