lotus question

I am trying *again* to grow a lotus in my pond.
(years ago in my OTHER residence I had no problem with lotus, they took off
all over)

last year they refused to grow.

this year 2 weeks ago I bought another ,, had the place PLANT it for me in a
basket, they said be very careful to not break leaves ( as they bleed yucky
& it will kill plant) etc. it had one growing point on it, which has
turned into a floating leaf......... 2 weeks, that's it...... when will it
grow anything else???

btw, if you have to be that delicate of it,, how do you keep the frogs from
damaging it?? ( I KNOW I didn't have problems with the past ones)