One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's the best time to plant catharanthus in Little Falls by using the USDA zone info.

Planting Calendar for Catharanthus

Frost tolerance for catharanthus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since catharanthus are not cold tolerant it is important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant catharanthus in Little Falls 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 catharanthus and expect a good harvest is probably August. If you wait any later than that and your catharanthus may not have a chance to grow to maturity. If you are starting your catharanthus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Little Falls. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Little Falls is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Little Falls last frost occurs after April 15 be ready to cover your catharanthus in the event of a late frost.

USDA Zone Info for Little Falls

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 Little Falls

You may be interested in your other planting guides for Little Falls.