One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when you can plant tropical water plants by using the USDA zone info for Kittanning.

Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant tropical water plants until after the last frost because they are not cold tolerant.

The earliest that you can plant tropical water plants in Kittanning 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 tropical water plants and expect a good harvest is probably August. Any later than that and your tropical water plants may not have a chance to really do well. You can get started a couple of weeks earlier by starting your tropical water plants indoors.

Last Frost Date

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

Since the USDA zone info for Kittanning is just an average the actual date of last frost is different every year. Since half of the time in Kittanning there is a last frost after April 15 be ready to cover your tropical water plants if you have a late frost.

USDA Zone Info for Kittanning

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 Kittanning

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