One of the best tools that you have as gardeners to help us estimate 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.

A common way of figuring out when it's the best time to plant catharanthus is to consult the USDA zone info for Glen Cove.

Planting Calendar for Catharanthus

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

It's probably not a good idea to plant catharanthus until after all chance of frost has passed because they require warm weather.

The earliest that you can plant catharanthus in Glen Cove 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. You probably don't want to wait any later than that or else your catharanthus may not have a chance to really do well. 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

On average the last frost when the weather gets warmer is on April 15 in Glen Cove. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Glen Cove is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Glen Cove there is a last frost after April 15 so make sure that you are ready to cover your catharanthus in the event of a surprise late frost.

USDA Zone Info for Glen Cove

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 Glen Cove

You may be interested in your other planting guides for Glen Cove.