Before planting it is a good idea to find your USDA Zone info to determine 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.

By using the USDA zone info for Issaquah it's possible to determine when it's the best time to plant iceland poppy.

Planting Calendar for Iceland Poppy

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

You can plant iceland poppy a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant iceland poppy in Issaquah 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. You can get started a little bit earlier by starting your iceland poppy indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Issaquah. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Issaquah is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Issaquah you get a frost after March 15 be ready to cover your iceland poppy in the event of a surprise late frost.

USDA Zone Info for Issaquah

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 Issaquah

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