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

It's possible to figure out when you can plant sweet sultan by looking at the USDA zone info for Richmond.

Planting Calendar for Sweet Sultan

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

Sweet Sultan do well in mild cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant sweet sultan in Richmond 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 sweet sultan and expect a good harvest is probably September. If you wait any later than that and your sweet sultan may not have a chance to grow to maturity. You can get started a little bit earlier by starting your sweet sultan indoors.

Last Frost Date

On average the last frost is on January 31 in Richmond. In the coldest months of winter you should expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for Richmond is just an average and the actual date of last frost will vary from year to year. Half of the time in Richmond last frost occurs after January 31 so make sure that you are ready to protect your sweet sultan if you have a late frost.

USDA Zone Info for Richmond

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Richmond

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