One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant iresene in Arcata can be determined by using the USDA zone info.

Planting Calendar for Iresene

Frost tolerance for iresene:	Not tolerant of frost.
When to plant:	After the last frost.

Since iresene do not do well in cold weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant iresene in Arcata is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant iresene and expect a good harvest is probably September. If you wait any later than that and your iresene may not have a chance to really do well. You can get started a few weeks earlier by starting your iresene indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Arcata. In the coldest months of winter you can expect an average low temperature of 25°F.

Just be sure to remember that USDA zone info for Arcata may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Arcata there is a last frost after February 15 so just be sure to be ready to cover your iresene if you have one of those late frosts.

USDA Zone Info for Arcata

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Arcata

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