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.

One way of figuring out when it's the best time to plant sweet sultan is to refer to the USDA zone info for Progreso.

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 are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant sweet sultan in Progreso 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. Any later than that and your sweet sultan may not have a chance to grow to maturity. Starting your sweet sultan indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Progreso the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Progreso is not always accurate and the actual date of last frost changes from year to year. Half of the time in Progreso there is a last frost after February 15 so always be ready to cover your sweet sultan if you have a late frost.

USDA Zone Info for Progreso

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 Progreso

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