One of the first steps you take when you are estimating your gardening schedule is find your 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.

You will be able to determine when it's a good idea to plant sweet sultan by checking out the USDA zone info for Montpelier.

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 barely cold tolerant which means 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 Montpelier is April. However, you really should wait until May 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. 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 few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Montpelier. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Montpelier is just an average the actual date of last frost changes from year to year. Half of the time in Montpelier there is a last frost after May 15 so make sure that you are ready to cover your sweet sultan in the event of a surprise late frost.

USDA Zone Info for Montpelier

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Montpelier

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