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 can figure out when to plant alstromeria in Rittman by checking out the USDA zone info.

Planting Calendar for Alstromeria

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

Since alstromeria are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant alstromeria and expect a good harvest is probably September. If you wait any later than that and your alstromeria may not have a chance to fully mature. You can get started a little bit earlier by starting your alstromeria indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Rittman. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Rittman is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Rittman it frosts late in the year after April 15 so make sure that you are prepared to protect your alstromeria in the event of one of those late frosts.

USDA Zone Info for Rittman

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Rittman

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