Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of estimating when it's a good idea to plant alstromeria is to refer to the USDA zone info for Newport.

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 moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant alstromeria in Newport 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

The average date of last frost is April 15 in Newport. In the coldest months of winter you can expect an average low temperature of 5°F.

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

USDA Zone Info for Newport

Here is the info for USDA Zone 7b.

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

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Newport

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