The largest indoor Flower Show in the world, run by the Pennsylvania Horticultural Society, takes place annually in Philadelphia, where it has been held for almost 200 years.
This year the theme is 'Holland' and so the exhibits and gardens featured many thousands of bulbs, especially tulips - of all colours.
At the main entrance the showpiece exhibit was a canal bridge decorated with flowers and surrounded by bulbs.
Underneath the bridge panels of blue and white Delft tiles were interspersed with planted succulents, moss and flower heads.
Today was the first day of the show and so it was very busy, the three large halls of the Convention centre were crowded, with more than 250,000 people expected to visit over the nine days of the Show.
So many different flowering bulbs..
In one garden were a number of different colours of Iris Reticulata. The exhibitor was a bulb company from Middlesex - the only UK exhibitor that we saw.
Some of the exhibits were competition classes..
These outrageously blue tulips had, of course, been dyed..
There was much more to see of course and I will share some more in the next few days!