It's all about reusing disposable plastic (water) bottles. Previously, I converted such bottles in to plant containers. The plants in these containers have new leaves; growth is fine.
And that encouraged me to use the plastic bottles as seed trays or seed starters. I would make paper cups to sow seeds; I loved the paper cups! I also used the commercial seed trays for sowing seeds. Previous week, I cut a few plastic bottles, put the soil mixture inside them, and sowed required seeds. Have a look at the photos.
|Three 2-lt water bottles cut length-wise; seeds sown are beans, hollyhock, cosmos|
|Three days later, beans seedlings and one hollyhock seedling seen in the bottles|
|A close-up of beans seedlings|