Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Sheridan you can determine when it's a good idea to plant gomphrena by using the USDA zone info.

Planting Calendar for Gomphrena

Frost tolerance for gomphrena:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Gomphrena do ok in moderate cold which tells us that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant gomphrena in Sheridan 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 gomphrena and expect a good harvest is probably August. You probably don't want to wait any later than that or else your gomphrena may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your gomphrena indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Sheridan. It might get as low as 15°F during the coldest months of winter.

Keep in mind that USDA zone info for Sheridan is not always accurate and the actual date of last frost changes from year to year. Half of the time in Sheridan it frosts late in the year after March 15 so always be ready to cover your gomphrena if you have one of those late frosts.

USDA Zone Info for Sheridan

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Sheridan

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