Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when you can plant hypericum by referring to the USDA zone info for Idabel.

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 ok in moderate cold which means that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant hypericum in Idabel 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 March 15 in Idabel. In the coldest months of winter you should expect an average low temperature of 10°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Idabel and it will vary from year to year. Half of the time in Idabel it frosts late in the year after March 15 so make sure that you are prepared to cover your hypericum in the event of a late frost.

USDA Zone Info for Idabel

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 Idabel

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