One of the first steps you take when you are making a decision about your gardening schedule is find your 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.

A way of estimating when it's a good idea to plant hypericum is to check out the USDA zone info for Greenville.

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 slightly earlier in the year than other frost tender plants.

The earliest that you can plant hypericum in Greenville 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. If you wait any later than that and your hypericum may not have a chance to fully mature. You can get started a few weeks earlier by starting your hypericum indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Greenville. In the coldest months of winter you should expect an average low temperature of -15°F.

Remember that USDA zone info for Greenville may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Greenville you get surprised by a frost after April 15 be ready to protect your hypericum if you have a surprise late frost.

USDA Zone Info for Greenville

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Greenville

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