Are they allowed to say that - in a PC world?

I just have to share this with you all as it really cracked me up this morning on the way into work. It unfortunately probably does not translate quite so well in other countries idioms and also in straight text probably does not appear as funny as it did to me on the roadside.

As I passed a garden centre there was a very large advertising banner hung at the front advertising WINTER PANSIES.
The funny part is that due to lack of space a second advertising banner was pinned across the bottom of it so the whole read as follows

WINTER PANSIES

STAFF VACANCIES