One of the best tools that you have as gardeners to help us determine 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 Riverton you can figure out when you can plant melampodium by using the USDA zone info.

Planting Calendar for Melampodium

Frost tolerance for melampodium:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant melampodium until after the last frost has passed because they require warm weather.

The earliest that you can plant melampodium in Riverton 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 melampodium and expect a good harvest is probably August. Any later than that and your melampodium may not have a chance to really do well. You can get started a little bit earlier by starting your melampodium indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Riverton. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Riverton is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Riverton you get surprised by a frost after April 15 be ready to cover your melampodium if you have one of those late frosts.

USDA Zone Info for Riverton

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Riverton

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