One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for Highlands can be reffered to in order to determine when you can plant rhubarb.

Planting Calendar for Rhubarb

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

Rhubarb do ok in mild cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

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

Last Frost Date

The average date of last frost is April 15 in Highlands. You should expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Highlands and it can change quite a bit from year to year. Half of the time in Highlands it frosts late in the year after April 15 so be sure to be ready to cover your rhubarb in the event of a late frost.

USDA Zone Info for Highlands

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Highlands

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