Last of the year! Double-flowered Arrowhead rhizomes, 2 pieces. Rooted!! ?

This is a double-flowered Sagittaria trifolia grown in my home biotope. These are hardy plants that have overwintered outdoors through the cold Aomori winter. The flowers are cute double blossoms as shown in photo 2.
Photo 3 shows the actual plants collected this year.
They are kept indoors in plastic bottles, so there are no snails or insects attached!
Photos 7-10 show how I packed them in previous transactions. I wrap them in damp kitchen paper and ship them in a ziplock bag.

I grow them in Akadama soil only, and they grow large and bloom every year.
These were collected as a hobby by an amateur. I appreciate your understanding.

If you have any questions about how to grow them, I will answer to the best of my knowledge. Please feel free to message me!!

A tip for growing them large is to plant them in a in the following order from the bottom:
Akadama soil → regular potting soil for plants → Magamp K → potting soil → Sagittaria trifolia seedling → Akadama soil. This will make them grow incredibly large.