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.

By using the USDA zone info for Auburn you will be able to determine when it's possible to plant alstromeria.

Planting Calendar for Alstromeria

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

You can plant alstromeria just a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant alstromeria in Auburn 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. Any later than that and your alstromeria may not have a chance to grow to maturity. Starting your alstromeria indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Auburn. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Auburn may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Auburn it frosts late in the year after February 15 be ready to cover your alstromeria if you have a surprise late frost.

USDA Zone Info for Auburn

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Auburn

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