Tuesday, December 13, 2011

How to Grow Water Lettuce in Winter

The Pond Plant Girl Home Page

Water lettuce requires plenty of sunshine...
But in the wintertime, water lettuce has special needs. I presently keep my water lettuce and my water hyacinth in shallow plastic containers inside a greenhouse protected from frost and freeze.

Growing Water Lettuce Indoors
In cold winter conditions water lettuce can be wintered over indoors in a sunny window. However, it needs warmth and humidity. This can be accomplished with a Water Garden Light Box
; such as the one pictured here. This light box was simply made with an aquarium located in a sunny window covered with clear plastic wrap (to keep in the humidity) and with mirrors inserted inside the aquarium to reflect the light. (The mirrors were scrap mirrors I obtained for free from a glass and mirror company.) The mirrors were inserted on the bottom and on the left and right sides of the fish tank. I tried growing water lettuce the following year without mirrors, and the plants did not survive.

Florescent Lighting
A florescent light must be placed on top of the aquarium to create heat and humidity. A grow light can be used to replace the florescent bulb and can be purchased online or at any hydroponics store. .

Growing Water Lettuce Outdoors
In the wintertime, if water lettuce is grown outdoors in a pond, it needs to be protected from freezing temperatures and covered with plastic or a Hoop House. However, it will also need a fan to circulate the air to prevent mold and mildew.

Here are some helpful links about growing water lettuce:
How to Grow Water Lettuce

Build a Water Garden Light Box

If you have any questions or comments, please feel free to contact me at gail@pondplantgirl.com


city said...

nice idea..thanks for sharing....

K_tigress said...

Just what I needed. Thanks. :)