When to Plant Sweet Sultan in Roscoe, IL

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.

In Roscoe you can estimate when it's a good idea to plant sweet sultan by checking out the USDA zone info.

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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 some cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant sweet sultan
Possibly ok, but a risky time to plant sweet sultan
Probably not a good time to plant sweet sultan

The earliest that you can plant sweet sultan in Roscoe 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. If you wait any later than that and your sweet sultan may not have a chance to fully mature. Starting your sweet sultan indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Roscoe the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Roscoe is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Roscoe you get surprised by a frost after April 15 so just be sure to be ready to cover your sweet sultan if you have one of those late frosts.

USDA Zone Info for Roscoe

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Roscoe

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