One of the first steps you take when you are making a decision about 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.

You can estimate when you can plant heuchera in Chehalis by reviewing the USDA zone info.

Planting Calendar for Heuchera

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

Since heuchera are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant heuchera in Chehalis 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 heuchera and expect a good harvest is probably September. Any later than that and your heuchera may not have a chance to really do well. You can get started a little bit earlier by starting your heuchera indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Chehalis. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Chehalis is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Chehalis it frosts late in the year after March 15 be ready to protect your heuchera in the event of a late frost.

USDA Zone Info for Chehalis

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Chehalis

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