North Texas Pond, - still filling up.
Center will be 15' deep
Sides will slope down from 3-6' deep.

Just don't want to introduce problem plants into the pond but they don't seem to be taking over the pond I am getting them from. Which has hydrilla and FA, my other concern is accidently moving that over to my pond from planting these plants. Will a pond with 10-14 depth have any problem with hydrilla growing in it?

Thanks!

IMO....

The first picture looks like water plantain and also some kind of rush. Both should be ok.

The second picture looks like some kind of pond weed, possibly American Pond Weed. Should be ok.

The third appears to be a lily. I think I would leave that one alone. If you want lilies I suggest you buy a dwarf hardy variety.

Hope that helps. Hopefully, one of the pros will come along and correct me if I've got it wrong.

No pro here but I believe the top photo of the plant in the middle of the rush stems looks to be Arrowhead. The scape (stem with flowers) has the tell-tale triple pedal flower and below that are the achenes (seed pods).
2 is American pond weed which is possibly the best veg you can add to a pond.
3 is lilies but I don't know much about variety on those or how quickly they might spread, as I'm experimenting with "hardy" lilies myself.
I "think" you'd have to pull the bulb root or part of the tuber to get the lilies to grow in another location.
Arrowhead can be started from seed but it's quite hard to do effectively unless you have a nursery type setup. AH spreads through the root (tuber) unless you have fall drawdown and seeds can fall on wet soil, then you can get new growth from both once established.

That may also be sage/rush in the first pic. If it is, that's a great plant for shorelines.

3rd pic? If the leaves are perfectly round, then it's probably lotus, and you definitely don't want that. All of the hybrid lilies here have notched leaves, but some spread faster than others. Like Bill D said, best bet is to buy a named hybrid lily that spreads in a controlled manner.

Any Kirk Strawn hybrid should be a winner in TX. I've got 3 varieties, and they've been a great addition to my pond.

Might be. The leaves do not look like the arrowhead we have a round here (they look like arrowheads) but I think there is a lance leaf variety that looks similar to the picture. Water Plantain has similar flowers , etc.

Ok, I am not familiar with the Plantain, but yes, the stems are very similar. I had just noted early this year I had some arrowhead transplants that a few never really fully matured (Planted too late) and the leaves didn't fill fully and looked similar to the top photo.
each nutlet trio forms only off of main stem on arrowhead, the Plantain I read about says seed pods will split off of secondary shoots from main stem.
You're most likely correct Bill, I'm not the plant guru I'd like to be.

edit: to the OP, i'd say either plant is good!

+1!

I agree with all statements above. I didn't see hydrilla in any of those photos, but avoid that plant at all costs. If you don't, and hydrilla gains a foothold in your pond, it will spread exponentially and you'll be having to do a full pond treatment with herbicides. Hydrilla is one of the worst plants for private waters.

I don't know Bob, this looks like quite a bit of fun.