One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when you can plant sweet sultan is to examine the USDA zone info for La Mesa.

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 tend to make it in mild cold which means that you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant sweet sultan in La Mesa 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. You probably don't want to wait any later than that or else your sweet sultan may not have a chance to really do well. Starting your sweet sultan indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in La Mesa. You should expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for La Mesa is just an average and the actual date of last frost is different every year. Since half of the time in La Mesa last frost occurs after January 31 be ready to cover your sweet sultan in the event of one of those late frosts.

USDA Zone Info for La Mesa

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 La Mesa

You may be interested in your other planting guides for La Mesa.