One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when to plant tropical water plants by using the USDA zone info for Darby.

Planting Calendar for Tropical Water Plants

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

Since tropical water plants require warm weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant tropical water plants in Darby 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. If you wait any later than that and your tropical water plants may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your tropical water plants indoors.

Last Frost Date

On average the last frost is on April 15 in Darby. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Darby may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Darby you get surprised by a frost after April 15 be ready to protect your tropical water plants if you have a surprise late frost.

USDA Zone Info for Darby

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Darby

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