I use the green ones every year, they work just fine. :)

Thank You. I am glad to hear that they work. This gives me
more containers that I can use. Will they need more sun because of they are green?

Use them just like the clear ones. I don't do anything special with mine and I can't tell a difference between the plants in clear or green bottles.

Thank You. I am glad to hear that there is no difference in using the green bottles. Most of the flowers I am sowing are for sunny areas and I was concerned the green bottle would be like the plants being in shade.