Before planting it is a good idea to find your USDA Zone info to estimate 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 figure out when it's a good idea to plant alstromeria by looking at the USDA zone info for Dickinson.

Planting Calendar for Alstromeria

Frost tolerance for alstromeria:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Alstromeria are moderately cold tolerant which means that you can plant them earlier than more sensitive plants.

The earliest that you can plant alstromeria in Dickinson is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant alstromeria and expect a good harvest is probably October. If you wait any later than that and your alstromeria may not have a chance to really do well. You can get started a few weeks earlier by starting your alstromeria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Dickinson. In the coldest months of winter you can expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Dickinson is just an average and the actual date of last frost is different every year. Since half of the time in Dickinson last frost occurs after February 15 be ready to cover your alstromeria in the event of one of those late frosts.

USDA Zone Info for Dickinson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Dickinson

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