One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 estimate when it's possible to plant alstromeria by checking out the USDA zone info for Jerseyville.

Planting Calendar for Alstromeria

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

Since alstromeria do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant alstromeria in Jerseyville 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. Any later than that and your alstromeria may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your alstromeria indoors.

Last Frost Date

The average date of last frost is April 15 in Jerseyville. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Jerseyville is not always accurate the actual date of last frost will vary from year to year. Half of the time in Jerseyville you get a frost after April 15 so make sure that you are prepared to protect your alstromeria in the event of a late frost.

USDA Zone Info for Jerseyville

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 Jerseyville

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