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Onion and Waterlily

PostPosted: Thu Jan 02, 2014 2:34 pm
by moondog
I have a couple of questions regarding two plants I have growing from bulbs . The first one is an onion plant (Crinum) . After it sprouted , it began to grow at an incredible rate . Its shoots will soon break the water surface , how should I prune it ? Will snipping the tops of the shoots damage or kill it ?
I also have a Waterlily (Nymphaea) . It too is growing wildly , up, down and sideways . How should it be pruned ? Also can cuttings be taken and used for a new plant ? Any info. would be greatly appreciated .

Re: Onion and Waterlily

PostPosted: Fri Jan 03, 2014 1:14 am
by Diana
Onion: You can let it grow horizontally, across the top of the water, or you can cut it where you want. Won't hurt it.

Lily: There are only a few water lily related plants that work in the aquarium. One grows like this: It start by growing under water leaves. As long as the leaves only grow under water, it keeps putting out more underwater type of leaves. Once any of these reach the surface, though, it 'learns' that there is a much better supply of light and CO2 up there, and it will no longer make leaves for under water.
So, keep on removing any leaves you want, but especially remove ANY AND ALL that attempt to reach the surface.
If yours is not this type, and you have one that only grows on the surface you have the wrong sort for an aquarium. These need a pond.

Re: Onion and Waterlily

PostPosted: Fri Jan 03, 2014 9:55 am
by moondog
Thanks Dianna, the waterlily I have came from one of those little packs of "Betta Bulbs". It is rust colored and looks great . As you suggested , I will trim some leaves that are near the surface . Both it and the Onion plant grow FAST ! 1 to 2 inches a day . Thanks for the information .

Re: Onion and Waterlily

PostPosted: Sat Jan 04, 2014 10:12 am
by Crazygar

Re: Onion and Waterlily

PostPosted: Sat Jan 04, 2014 10:36 am
by moondog
Good article, thanks Gary .

Re: Onion and Waterlily

PostPosted: Sat Jan 04, 2014 6:16 pm
by Crazygar
Your welcome.

Gary

Re: Onion and Waterlily

PostPosted: Thu Jan 09, 2014 12:21 am
by asukawashere
For what it's worth, I've never actually seen a real Crinum (the aquatic onion plant) bulb in those little bulb packages. Invariably, they turn out to be the "dwarf onion plant" Zephyranthes candida, which is at best a marginal species that needs to have most of its leaves above the water. It can grow in a few inches of water (frequently it's found in low-lying areas and along the edges of ponds in the wild), but it's really not an aquatic. They grow really quickly when you sprout them underwater 'cause they're desperately trying to breach the surface...

Easiest way to tell is just by feeling the leaves. If they're broad and flat, it's a Crinum. If they've got a bit of dimension to them, sort of like the leaf of a chive plant, you've got a Zephyranthes.

Re: Onion and Waterlily

PostPosted: Thu Jan 09, 2014 2:57 pm
by moondog
From that description they are probably Z.Candida . They have broken the water surface, I will keep them and see what happens . Thanks for that interesting info.

Re: Onion and Waterlily

PostPosted: Thu Jan 09, 2014 4:07 pm
by asukawashere
You might try keeping it in a paludarium or in a flowerpot by a window. Water frequently (or get a pot w/o a hole in the bottom and add water just over the soil line—the roots are fine submersed) and you can probably get flowers—they're white and look a bit like a crocus bloom. :)