One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when to plant gomphrena in Marysville 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.

Since gomphrena are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant gomphrena in Marysville 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 gomphrena and expect a good harvest is probably September. If you wait any later than that and your gomphrena may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your gomphrena indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Marysville. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Marysville is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Marysville last frost occurs after February 15 be ready to cover your gomphrena if you have a late frost.

USDA Zone Info for Marysville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Marysville

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