Anacharis — what to do


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I had an explosive anacharis growth this year . The submerged plant covers a 4x4 x3 ft deep section of the pond . That’s approximately 25% of the pond. In past years the growth was 20% of that. I always left the plant in the pond thru the winter figuring whatever died off I would scope out in early spring.
But with that much growth I’m concerned if there is a massive die off during the winter it would create problems with DOC. The pond is 3000 gal max depth 3ft. There are 3 koi between 18-24“ and approx 60 gold fish. I leave my pumps running year round and there is a 16 ft stream feeding the pond .
Any thoughts would be appreciated
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brokensword

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if you're getting decent summer growth, you could halve the anacharis and be fine going into next season. My hornwort herd is still growing so I just leave mine as is but in the future, I'll be doing exactly what I advised above.

And, I know anacharis won't die below the ice so you're only concerned about that portion that gets locked in ice. Not sure that would die but you could trim the herd below the ice line and that too would calm your concerns.
 
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if you're getting decent summer growth, you could halve the anacharis and be fine going into next season. My hornwort herd is still growing so I just leave mine as is but in the future, I'll be doing exactly what I advised above.

And, I know anacharis won't die below the ice so you're only concerned about that portion that gets locked in ice. Not sure that would die but you could trim the herd below the ice line and that too would calm your concerns.
Thanks... I’m ok not trimming back as long as there is minimal plant death... I don’t mind it growing out to 50% of the ponds surface area especially since the fish seem to enjoy it.. plus added predator protection..
 

addy1

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I just let mine grow, it has never caused pond issues. The hornwort is a forest, I do yank it now and then.
 
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brokensword

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Thanks... I’m ok not trimming back as long as there is minimal plant death... I don’t mind it growing out to 50% of the ponds surface area especially since the fish seem to enjoy it.. plus added predator protection..
be careful re the size of your anacharis herd as in summer especially, underwater plants give off oxygen during the day but consume it at night. If you have a lot of supplemental surface agitation, you should be fine. If not, provide some or thin the anacharis.
 
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Thanks I have water returning to the pond from 3 different areas including a 16 ft stream so plenty of oxygenated water
 
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You could thin it and give it away, I’ve got two aquariums and a mini pond that would enjoy more plants! Lol. Seriously, if it gets to be too much, post in the classifieds here, have folks send you the shipping cost, and ship them a box. You would trim a set amount off the forest, wrap in damp paper, like newspapers, then seal it in plastic, box it and send it out.
 
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You could thin it and give it away, I’ve got two aquariums and a mini pond that would enjoy more plants! Lol. Seriously, if it gets to be too much, post in the classifieds here, have folks send you the shipping cost, and ship them a box. You would trim a set amount off the forest, wrap in damp paper, like newspapers, then seal it in plastic, box it and send it out.
So are you hinting that you would like me to send you some plants. Send me a PM. I will gladly send you some for the price of shipping . I have a ton of yellow flag iris and parrots feather if you are interested
 

cas

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Is your anacharis growing in anything, or is it bareroot? I tried to overwinter some a few years back, and in the spring all I had was mush on the bottom of my pond!
 
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addy1

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Is your anacharis growing in anything, or is it bareroot? I tried to overwinter some a few years back, and in the spring all I had was mush on the bottom of my pond!
Mine overwinters, stays green all winter.
 

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Is it planted or bare root?
bare root, I have never planted the hornwort or anacharis, some has planted itself in the lily pots but most is free.
 
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Is your anacharis growing in anything, or is it bareroot? I tried to overwinter some a few years back, and in the spring all I had was mush on the bottom of my pond!
Was tossed into the pond several years ago weighted with glass beads. What has erupted is just floating and gets tangled up with my lily plants . I thought most had died off after last winter but ended up with a massive forrest
 

cas

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I thought most had died off after last winter but ended up with a massive forrest
So did it leave a mess in the pond? Did you have to clean up the dead plants?
 
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First the amount I had last year was about 25% of what grew this year. So no there was no mess to clean up . I may have a different answer for you next spring due to quantity that is in the pond now.
Also I have about 50-60 goldfish and 3 koi. When the weather drops below 50 and the fish are less active I stop feeding them. So if they are active due to weather changes or are just hungry I assume they are munching on the anacharis.
 

brokensword

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First the amount I had last year was about 25% of what grew this year. So no there was no mess to clean up . I may have a different answer for you next spring due to quantity that is in the pond now.
Also I have about 50-60 goldfish and 3 koi. When the weather drops below 50 and the fish are less active I stop feeding them. So if they are active due to weather changes or are just hungry I assume they are munching on the anacharis.
if you can keep ice from forming/thin, you shouldn't have any 'mess'.
 
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brokensword

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well, actually you can; you can agitate the surface either by letting your waterfall continue, knowing ice might form in front but water will flow behind, or by aiming a small pump at the surface from below. Either will keep ice from forming as long as the flow is strong enough and/or the winter temps aren't too cold. Another way, which is what I do in addition to keeping the waterfalls running, is to cover the pond with agricultural plastic sheeting. This keeps the wind from accelerating winter evaporation, keeps the water temps up, and assists with no ice formation. Makes spring startup so much better when I don't have to wait for the ice to melt.
 

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