Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 hypericum in Chehalis should be estimated by referring to the USDA zone info.

Planting Calendar for Hypericum

Frost tolerance for hypericum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Hypericum do well in mild cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant hypericum in Chehalis 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 hypericum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your hypericum may not have a chance to really do well. You can get started a couple of weeks earlier by starting your hypericum indoors.

Last Frost Date

The average date of last frost is March 15 in Chehalis. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Chehalis is just an average the actual date of last frost changes from year to year. Half of the time in Chehalis you get surprised by a frost after March 15 so make sure that you are prepared to protect your hypericum if you have one of those late frosts.

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.