Can the flower ball on the other side germinate at about 5~ 13 degrees?

It should be possible. The lowest temperature for the tolerant growth of anemones is 1 degree. It should be possible if there is little change for the time being. You can cover the basin with a plastic film to keep it warm.

In addition, the flowers on the other side can also be planted in spring and bloom in autumn. So you still have enough time to plant it.

Put it on the balcony and put a plastic bag on the basin at night to help keep warm and grow.

Open the bag at noon during the day to bask in the sun to prevent the bulbs from rotting. There is less water, not more.