One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when it's a good idea to plant sweet sultan is to refer to the USDA zone info for Murphysboro.

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.

Since sweet sultan are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant sweet sultan in Murphysboro 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 sweet sultan and expect a good harvest is probably August. Any later than that and your sweet sultan may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your sweet sultan indoors.

Last Frost Date

The average date of last frost is April 15 in Murphysboro. You can expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that USDA zone info for Murphysboro is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Murphysboro you get surprised by a frost after April 15 be ready to protect your sweet sultan in the event of one of those late frosts.

USDA Zone Info for Murphysboro

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Murphysboro

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