If you love flower you might be enjoy here. But if not this place might be boring for you. I like here but not love. But this place renewal lately so I saw many unusual plants,and flowers. You'll see huge hothouse at first.Inside is very nice. There are many style like Bali island area,Alice in wonderland area and Mexico area and so on. You also find big fountain. You can see water show every 30mins.
Admission fee is adult 800yen. Child is 350yen. If you choose zoo also ,it's 1100yen. ( next to flower park is zoo) . If you go to there after 6pm,it's getting cheeper. I think night flower park is much better for couple.