The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Hartselle you will be able to estimate when it's a good idea to plant tropical water plants.

Planting Calendar for Tropical Water Plants

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

Since tropical water plants require warm weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant tropical water plants in Hartselle 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. You probably don't want to wait any later than that or else your tropical water plants may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your tropical water plants indoors.

Last Frost Date

The average date of last frost is April 15 in Hartselle. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Hartselle is an average the actual date of last frost will vary from year to year. Since half of the time in Hartselle last frost occurs after April 15 be ready to protect your tropical water plants in the event of a late frost.

USDA Zone Info for Hartselle

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Hartselle

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