The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when it's a good idea to plant iceland poppy is to refer to the USDA zone info for Centralia.

Planting Calendar for Iceland Poppy

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

Iceland Poppy tend to make it in mild cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant iceland poppy in Centralia 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 iceland poppy and expect a good harvest is probably September. You probably don't want to wait any later than that or else your iceland poppy may not have a chance to grow to maturity. If you are starting your iceland poppy indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Centralia. It might get as low as 15°F during the coldest months of winter.

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

USDA Zone Info for Centralia

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Centralia

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