One of the best tools that you have as gardeners to help us figure out 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.

By looking at the USDA zone info for Grove City it's possible to determine when it's the best time 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.

Since alstromeria do well in moderate cold you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant alstromeria in Grove City 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 really do well. You can get started a few weeks earlier by starting your alstromeria indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Grove City. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Grove City is not always accurate the actual date of last frost changes from year to year. Half of the time in Grove City last frost occurs after April 15 so make sure that you are ready to protect your alstromeria in the event of one of those late frosts.

USDA Zone Info for Grove City

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 Grove City

You may be interested in your other planting guides for Grove City.