Before planting it is a good idea to find your USDA Zone info to determine your garden 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 Niagara Falls can be looked at to estimate when you can plant bougainvillea.

Planting Calendar for Bougainvillea

Frost tolerance for bougainvillea:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since bougainvillea are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant bougainvillea in Niagara 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 bougainvillea and expect a good harvest is probably August. If you wait any later than that and your bougainvillea may not have a chance to really do well. If you are starting your bougainvillea indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Niagara Falls. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Niagara Falls is an average the actual date of last frost is different every year. Half of the time in Niagara Falls last frost occurs after April 15 so make sure that you are prepared to protect your bougainvillea if you have one of those late frosts.

USDA Zone Info for Niagara Falls

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 Niagara Falls

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