One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's a good idea to plant catharanthus by looking at the USDA zone info for Port Jervis.

Planting Calendar for Catharanthus

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

Since catharanthus are not cold tolerant you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant catharanthus in Port Jervis 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. Any later than that and your catharanthus may not have a chance to really do well. You can get started a little bit earlier by starting your catharanthus indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Port Jervis. You can expect an average low temperature of -10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Port Jervis is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Port Jervis last frost occurs after April 15 be ready to protect your catharanthus in the event of a late frost.

USDA Zone Info for Port Jervis

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Port Jervis

You may be interested in your other planting guides for Port Jervis.