Yes they do dream of snow. I once over heard two plants discussing and their words went thus:

Oh! Say, how long till then, when all is fair?
When all is fair? Or seeming pure?

All same, all same, I miss the cold
The cold and dry or cold alone?

Why speak I still, when ye are faint?
Not faint, not faint, just burnt with thirst

So ye disgust with heat and sweat?
Oh yes sister, with glands all dirt. Though cold and dry the time may be, I long to feel, all draped in snow

Let the little plant be. It's having it's moment in the snow. A little while now and a little while then, it'll be draped with dust