Two lips

I was thinking about white tulips, but Yellow Dog, said: 'No, the yellow ones.' My wee Aygo was so definite that I had to concuur. I was looking for flowers that I can leave on my friend Jimmy's boat, but tulips need to be in water, so I'm not sure I have made the best choice. I  like the way they go do-lally after a while. Maybe I should wait until then?