Ok plant folk

[Sparky]

i know little to nothing about planting ponds. So winging it with some help. First off, what is happening to my hyacinth? They were started indoors and produced babies once they hit the pond. Then a couple of weeks ago I noticed the roots turning a purple black color. They don’t look so hot to me but what do I know?

 

[MitchM]

The roots are rotting.
How much do you know about your water conditions? (the usual parameters plus temperature changes)
Was there much of a temperature change from indoors to outdoors? They don't like rapid temperature changes.

 

[Sparky]

NH zero NO2 zero NO3 trace pH 7. My pond is swinging in temp for at least another week or so and yes, big swings. Doesn’t seem to bother the fish whatsoever. I moved all hyacinth to my heated guppy tub. The heater stays til July. Hopefully they’re not too far gone. My lettuce roots look good but outer leaves have yellowed and the plant looks slightly pale. Wonder if temp swings affect them? Thankyou Mitch

 

[MitchM]

Do you have a guestimate what the temperature difference was between indoor and outdoor water temperature? (actual numbers)
I'm suspecting that was the problem. You may need to look at replacing them.

 

[Bluerooster]

My water temp swings from ~68f (night) to 90+ (heat of the day) Lettuce, and hyacinth seem to be OK.
Fish have gotten used to it over the past year. (I guess)

 

[Lisak1]

Hyacinths will react to air temperature changes as well - with dramatic water temperature changes like you are reporting, I would have to guess you're getting significant air temp drops as well?

 

[Sparky]

The hyacinth have been in the outdoor pond for a 5 weeks. Temp has swung from 50F to 78F numerous times. Before that they were at a constant 65F.

 

[Sparky]

Hyacinths will react to air temperature changes as well - with dramatic water temperature changes like you are reporting, I would have to guess you're getting significant air temp drops as well?

Yes indeed but they should be about over. We have had low 40s a handful of times since being outside. I have new plants coming soon but try to nurse what I have if possible.

 

[MitchM]

I've found hyacinth to be aggressive when the conditions are right but fragile when it comes to water conditions and pests. (aphids in particular)

 

[Bluerooster]

water temp yesterday at about 3:30pm.

 

[Sparky]

water temp yesterday at about 3:30pm.View attachment 112092

Looks familiar

 

[Lisak1]

My water temp swings from ~68f (night) to 90+ (heat of the day) Lettuce, and hyacinth seem to be OK.
Fish have gotten used to it over the past year. (I guess)

@Bluerooster - how deep is your pond? I'm surprised you get temperature variations that wide - water generally takes longer to heat and/or cool.

 

[MitchM]

What is that a picture of?
The thermometer stuck in something white has me a bit confused.

 

[Bluerooster]

@Bluerooster - how deep is your pond? I'm surprised you get temperature variations that wide - water generally takes longer to heat and/or cool.

That's the problem, it's 2' deep at the deepest point. With a large surface area. (Should have made it way deeper)

 

[Bluerooster]

What is that a picture of?
The thermometer stuck in something white has me a bit confused.

Thermometer stuck in a piece of Rmax foam insulation, floating on the surface, with the probe about 6" down.
It's an automotive HVAC thermometer. the dial is about the size of a quarter.