Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when it's a good idea to plant hamelia is to refer to the USDA zone info for Cambridge.

Planting Calendar for Hamelia

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

Hamelia do not do well in cold weather which means that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant hamelia in Cambridge is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your hamelia may not have a chance to fully mature. Starting your hamelia indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Cambridge the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -30°F.

Since the USDA zone info for Cambridge is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Cambridge you get surprised by a frost after May 15 be ready to cover your hamelia if you have a surprise late frost.

USDA Zone Info for Cambridge

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Cambridge

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