Growing emersed - but what to do with old growth?

3724 Views 6 Replies 4 Participants Last post by hygropunk, Nov 6, 2016

hygropunk

Discussion Starter · Nov 4, 2016

Hello everyone. I'm currently growing out some plants in a small emersed setup, to eventually put in a paludarium...

Plant Green Flowerpot Ingredient Fines herbes

It's been a few weeks and as you can see, everything is transitioning pretty well! However while the stem plants are putting out new emersed growth, the old submersed growth is still around, not dying but not growing either. I worry these portions may make it more difficult to replant later.

So what should I do? Do I cut the emersed stems off and try to root/propagate them, or do I just leave it alone? Will the submersed stems die off eventually?

For reference -
Top row: Hydrocotyle verticillata, Limnophila aromatica 'Wavy', Myriophyllum aquaticum 'Red Stem', narrow leaf Java fern
Bottom row: Marsilea minuta, Ludwigia 'Red', Hydrocotyle tripartita, Micranthemum Tweedei 'Monte Carlo'

Substrate is sifted potting soil, sand, and Eco-Complete. I change the water weekly, alternating between adding Seachem Flourish w/houseplant fertilizer, and Armor Si (potassium silicate, a hydroponics fert). They're under a humidity dome outside atm.
...And all of these were bought from TPT's Bartohog!

roud:

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klibs

· #2 · Nov 4, 2016

Hmmm I have done emersed -> submerged so I will assume submerged -> emersed would follow the same rules. Once you get enough new growth to re-plant just trim and re-plant the new emersed growth, discarding the submerged growth. If the old submerged growth isn't causing issues (is still healthy and not blatantly dying) I would think you could just leave it alone and be fine. I personally would re-plant eventually anyways.

For me I got a few species of stem plants emersed and planted them submerged. The submerged growth was totally different and after a few weeks the old emersed growth was decaying and rotting away. I re-planted the submerged portions and everything was fine.

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Remmy

· #3 · Nov 4, 2016

you can cut and replant the new emersed growth in the soil no problems, just make sure it is well humidified so the new stems have a chance to root themselves and not dry out

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Opare

· #4 · Nov 5, 2016

Yeah I trim off the submerged portions and replant the emerged growth in my setup, I wait for the emerged to growth to get to a decent size though.

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hygropunk

Discussion Starter · #5 · Nov 5, 2016

What would you consider a 'decent size'? A couple inches? The Myriophyllum and Ludwigia could probably be cut, but the Limnophila is growing very slowly so I won't touch it.

If I cut and replant the emersed growth, should I throw the submersed growth away? Or should I keep it, in case it keeps popping out new stems?

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Opare

· #6 · Nov 5, 2016

hygropunk said:
What would you consider a 'decent size'? A couple inches? The Myriophyllum and Ludwigia could probably be cut, but the Limnophila is growing very slowly so I won't touch it.

If I cut and replant the emersed growth, should I throw the submersed growth away? Or should I keep it, in case it keeps popping out new stems?

Yeah that would be long enough.
I usually throw away the submersed growth. The plants usually grow fast enough that I never need to keep it/don't have space to.

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hygropunk

Discussion Starter · #7 · Nov 6, 2016

I'll give it a try, thanks!

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