The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant hamburg root parsley in Riverton can be figured out by using the USDA zone info.

Planting Calendar for Hamburg root parsley

Frost tolerance for hamburg root parsley:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant hamburg root parsley a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant hamburg root parsley in Riverton 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 hamburg root parsley and expect a good harvest is probably August. You probably don't want to wait any later than that or else your hamburg root parsley may not have a chance to really do well. Starting your hamburg root parsley indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Riverton the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Keep in mind that USDA zone info for Riverton may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Riverton it frosts late in the year after May 15 so make sure that you are prepared to cover your hamburg root parsley if you have one of those late frosts.

USDA Zone Info for Riverton

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 Riverton

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