One of the first steps you take when you are determining 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.

You will be able to determine when it's possible to plant rhubarb by reviewing the USDA zone info for Johnson City.

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 some cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant rhubarb in Johnson City 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. If you wait any later than that and your rhubarb may not have a chance to really do well. You can get started a couple of weeks earlier by starting your rhubarb indoors.

Last Frost Date

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

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Johnson City and it can change quite a bit from year to year. Since half of the time in Johnson City there is a last frost after April 15 be ready to protect your rhubarb if you have a late frost.

USDA Zone Info for Johnson City

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 Johnson City

You may be interested in your other planting guides for Johnson City.