Sagittaria sagittifolia Conflicting information

Hi everyone, I'm after your advice once again. I bought a water arrowhead a few weeks ago and following info (can't remember where now) placed it in my pond with the top of the basket about 15cm below the surface. The leaves were promptly attacked by the pond snails so (again, after online search), I gave them a lettuce leaf to munch instead. This worked brilliantly but the plant wasn't happy. I then read the leaves grow larger if its deeper so moved it very slightly to about twice the depth. It was even more unhappy. More online searching, using RHS, UK pond sites etc and ended moving it to a shallower location as the leaves seemed to be rotting. It has been sited with the basket a few cm under the surface for a week or more and looks as though its terminal. My frustration is that all these seemingly reputable sites give conflicting/varying depths to site the plant. From 0-10cm, 10-30cm and 30-200cm! Its a minefield to a novice like me and Ive found conflicting info to be a common issue when looking for planting guidelines. I try to stick to uk sites that are "reputable" (sorry, can't think of the appropriate word), but still am flumoxed by the variation in info regarding planting site, depth, care etc. I'm pretty sure my current water archer is not long for this world, but if anyone has tips on its care I'd be very grateful.
Posts
https://www.watersidenursery.co.uk/sagittaria-sagittifolia-arrowhead/
I would rate these people as reputable. Reading what they say it may be your plant is doing as expected but this is not one that I grow so can't be sure
In the sticks near Peterborough
Thanks for the quick response and advice. That's one of the sites I've used. I suppose it could be that the plant will grow in all the conditions I've read, but that something in my pond isn't to its liking. Ah well, I'll leave it where it is for now and see if anything "happens." Thanks again...
Aha! Just looked at your link and seems there's still hope..its the first time I've seen the info on them during back. So thanks a mil nutcutlet, you've given me hope!
I'm relieved too.
I bought some sagittaria plants from Waterside in spring and they haven't done much - now I know why.
A bit more info here on the 'bulb' things and how to re pot them
https://www.watersidenursery.co.uk/tips-advice/pond-plants-repotting-marginal-pond-plants/
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Haha, its always good to know your not alone isn't it?!
I'll go have a look for some 'bulbs' in a while.
Good luck with yours too
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
I had a grub around the 2 pots and couldn't find any bulbils, so I don't know if that's the end of the story or if they'll come back next year.
Just have to wait and see I suppose.
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Id normally do the same but im going to leave mine alone, hopefully we both get plants next year! Good luck
So it's not just me either! Mine, also from the same supplier is as dead as a do do! Thanks for bringing this up Zen Dog and as usual Pete8 is a fountain of knowledge.
Tnanks Angie - a fountain of experience maybe
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.