One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when it's possible to plant hypericum by referring to the USDA zone info for Christiansburg.

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.

Since hypericum do ok in moderate cold you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant hypericum in Christiansburg 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. Any later than that and your hypericum may not have a chance to fully mature. You can get started a little bit earlier by starting your hypericum indoors.

Last Frost Date

The average date of last frost is April 15 in Christiansburg. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Christiansburg is not always accurate the actual date of last frost is different every year. Since half of the time in Christiansburg it frosts late in the year after April 15 be ready to protect your hypericum if you have a surprise late frost.

USDA Zone Info for Christiansburg

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Christiansburg

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