View Full Version: Water Lettuce, Dying?

Fishpondinfo > Pond Plants > Water Lettuce, Dying?

Title: Water Lettuce, Dying?
Description: Turning yellow, starting to die off???

Goldfish_Paige - July 9, 2008 01:59 AM (GMT)
I moved all the water lettuce from our tiny front pond (where it doubled and thrived very well) to our new pond out back that is 550 gallons. The edges of both the lettuce and the hyacinth are turning yellow (the hyacinth also has black)

Are these dying on me??

I have water liily's and they are doing GREAT!

Any advice would help


frogman3 - July 9, 2008 03:02 AM (GMT)
Water lettuce does not like sun all day where as lilies do. I have water lettuce in two ponds purchased at the same time and the ones with less sun are doing much better but they still should not die unless the water temp. in the new pond is too low.

tlc - July 9, 2008 04:49 AM (GMT)
I don't think I have said HI and welcome! :)
My water lettuce leaves do turn yellow then eventually white mush. Usually its the whorl that is closest/nearest to the water. Is that what yours are doing? I just cut or tear them off before they fall off in the pond. My hyacinths will also turn black. I pinch those off too. The ones that are in the water. I figured they were old ones.
You know, you can always post a picture of your plants and we would be more than happy to tell you our opinions. :rolleyes: We love pics here! :)

Here is a link to a pic of my hyacinth
If you look real close you might see some black ones in there. If I think about it I will get a pic of my water lettuce and hyacinth and post here for ya!


Robyn - July 9, 2008 07:48 PM (GMT)
Water lettuce and water hyacinth may turn yellow if they are too cold, there's not enough light, there's not enough food (fish waste), or there's not enough or too much of certain chemicals (potassium, iron, etc.). If your new pond doesn't have as many fish, then the plants may need more food. Try FloraFin liquid plant fertilizer. As your pond matures, the plants will become healthier. They may also be in shock from the change in lighting and water chemistry when moved from one pond to another. I hope they adapt and get better soon!

Goldfish_Paige - July 10, 2008 01:57 AM (GMT)
Thanks for all the advice, I will take pictures tomorrow and see if I can figure out how to put them on here for you to see. I have fish in there, 10 of them to be exact. The front pond did get a lot of shade whereas this one gets mostly all sun. Maybe I shouldn't buy these types of plants next season?

tlc - July 10, 2008 04:11 AM (GMT)
QUOTE (Goldfish_Paige @ Jul 9 2008, 06:57 PM)
Thanks for all the advice, I will take pictures tomorrow and see if I can figure out how to put them on here for you to see.

Ohhh, so you want to post some pics do you?
Here let me help :) Here is a link for one way to do it:
No I wouldn't be to quick to judge as to whether you should buy them again or not. Mine get quite a bit of sun. Lets see what your pics look like.

tlc - July 10, 2008 05:48 PM (GMT)
I shot a couple of pics today of the water lettuce and hyacinth. Sorry the hyacinth pic is faded. We actually had sun today!

user posted image

user posted image

Maestro loco - July 11, 2008 01:47 PM (GMT)
I think your plants are starved for nitrogen. Try putting a few into a separate container (not in the pond) with some soluble fertilizer, such as Miracle Grow, for a week and see if they don't improve dramatically. If they do, rotate some of your plants to get a fertilizer "fix" each week. That should keep them green and healthy. Be sure to rinse the roots before returning them to the pond.


tlc - July 11, 2008 03:15 PM (GMT)
Will do Don!
Thanks! :)

tlc - July 11, 2008 05:55 PM (GMT)
Well Don, I took your advice and put some water lettuce and a couple hyacinths in. I had to use some orchid food as I didn't have the stuff you said to use. I'll get some later today or tomorrow. In a week you say I should see some difference? I will count the days until I have beauuutiful plants :)

Maestro loco - July 12, 2008 05:04 AM (GMT)

Shouldn't matter what fertilizer you use as long as it has some nitrogen in it. Be sure to dilute it as directed on the package. You don't want to burn the roots with too much. Remember, too, that as you rotate your plants every week or two (put yellowed ones in the container and return greened ones to the pond) that you will need to add new fertilizer solution to the container as the plants use up the nutrients.


tlc - July 14, 2008 05:02 AM (GMT)
Yep Don, the first batch I did burn a little. Got a little excited with the fertilizer :rolleyes:
Put in some fresh stuff with more water this time so it should work. ;)

frogman3 - July 16, 2008 09:08 PM (GMT)
Ok now I will throw my two cents in on this problem. I have heard of other ponders experiencing the same problems with their floating plants on another forum. What some knowledgeable ponders have said if your water hyacinths are yellowing and the leaves have a veiny appearance, and extemely long roots, like Tia's. That your pond is difficent in IRON. They recomended Fertilome liquid iron since it is the only one that they knew of that contained chleated iron and some other Iron supliments that the garden centers carry have high copper content, which is not good. I have not been able to find it localy but today I was flipping through my Dr fosters catolog and in the fertilizer section there is was, well not fertilome but it's called Flourish Iron. I guess what I am saying I would prefer if I had this problem to fix it in my pond instead of rotating the plants. I do believe that's one of the benifits of doing regular water changes since alot of the elements that plants use are depleated in our man made ponds. Just be sure never to add supplements that contain phospate or nitrate or expect and Aggae bloom cause that's what they thrive on. There you go another option. :rolleyes:

SadieMay - July 16, 2008 09:38 PM (GMT)
My water lettuce in my main pond has bottom yellow leaves ( in full sun ), still everybody is munching on them. The lettuce in my waterfall pond ( 2 little puddle areas up there) that's getting a direct hit from the filter is totally green. When I throw the yellow stuff out to feed the fish I drop a few green ones down to clear the falls. :) When it's relatively quiet outside the munching fish sound like kids sucking on a big straw. :D

tlc - July 19, 2008 04:35 AM (GMT)
Did the fertilizer in the water a few days back and they are looking healthy. I put hyacinths and water lettuce. Now I have to do the sway cause the ones in to pond look pretty back compared to the ones in the tub. No rest for the weary I guess. :rolleyes:

Hosted for free by zIFBoards