The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Manhattan should be reviewed to figure out when it's possible to plant hamelia.

Planting Calendar for Hamelia

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

It's a bad idea to plant hamelia until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant hamelia in Manhattan 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 hamelia and expect a good harvest is probably August. If you wait any later than that and your hamelia may not have a chance to grow to maturity. Starting your hamelia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Manhattan. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Manhattan is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Manhattan you get surprised by a frost after April 15 so always be ready to cover your hamelia in the event of a late frost.

USDA Zone Info for Manhattan

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 Manhattan

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