How can this game be played when there aren't enough people with the necessary gardens?

There's one still attracting, in the Missed section to the left.

Thank you!
This person blocked me years ago. And I don't see her garden.

Maybe something needs to be changed in this game so that the gardens don't freeze when there's no opportunity to play?

I know what you mean, Maya, but i wouldn't want it to be that we can't freeze because others won't have a garden to water in because if no one is around at the time of a critter, say a topiary is due and the garden owner needs to go to bed, then they don't know that someone may suddenly need what they're attracting, so they freeze so nothing is missed and then unfortunately the person needing it sees that the person is froze. I always leave a msg. on the persons back wall asking them if they wouldn't mind letting me know when they open up as i'd like to try to spot a such and such. It means waiting but you get a garden or more turning up eventually. :)

Well, when a person opens the garden at a time when, in Europe, players are sleeping, I don't think there are people who get up at 3 in the morning to play.

Fortunately, from time to time, there are kind people who offer to help. As is the case right now.

Yes the time difference makes it hard at times but i still haven't had a problem when they open and haven't had to play at ridiculous hours to be able to play. It just takes a little longer at times, that's all. 

There hasn't been a garden with a topiary crane for days now.