When to visit Hokkaido?

Hi, I would like to visit Hokkaido in May 2008. I am interested to experience snowy scenery, cherry viewing, onsen baths and the flowers (especially the lavenders) blooming season. Is early or late May a good time to go? And which areas of Hokkaido can I experience the above? Also any recommendations on accomodations? Thanks.

I am interested to experience snowy scenery, cherry viewing, onsen baths and the flowers (especially the lavenders) blooming season. Is early or late May a good time to go?

Early to mid May (I recommend to go after Golden Week) is a good time to go. You can see cherry blossoms in southern Hokkaido (around Hakodate), while still encountering some snow in Daisetzusan National Park:
http://www.japan-guide.com/e/e6775.html

Thanks Uji. What about onsen experience and flowers blooming? Any chance I can also experience them in early May? If so, which places can I visit? Thanks.

What about onsen experience

Any time of the year is okay.

and flowers blooming?

Not sure.

Thanks Uji. What about having onsen bath in Summer in Hokkaido? Is there such a practice? Will it be too hot in summer in Hokkaido to have onsen baths? Which is a better time to visit Hokkaido, in May or in July? I am still thinking of visiting in either these two months. Thanks.

What about having onsen bath in Summer in Hokkaido? Is there such a practice?

Again, hot springs are nice around the year. But in general, hot springs are more enjoyable when the air is not too hot. Then again, Hokkaido does not get that hot during summer, especially in the higher elevations.

Which is a better time to visit Hokkaido, in May or in July?

In many respects, July is more attractive. But also more crowded.

Thanks Uji. I really appreciate your help.