A variety of materials and food containers can be reused for starting your garden plants. This guide is about recycled seedling container ideas.
By anniesplace from Blackpool, England

I find that egg cartons and pudding snack containers do not provide enough space for proper root formation of indoor seedlings. I make my own containers with no more than pages from an old phone book and masking tape.
The size I want the finished "cell" to be will determine whether it will be 1 2 or 3 pages thick. It will also determine what I choose to wrap the pages around before taping edges and formed bottom together and then sliding off. The finished cells are placed in suitable containers such as frozen food trays filled with my homemade potting soil planted with seed watered and placed where they will receive as much sunlight as possible.
Pros:
You can make a variety of sizes.
All components are free.
Plastic is kept out of the landfill.
Easy to do.
Container and all can be planted (break open bottom a bit first).
You feel good about what you've done.
Cons:
There are none.

By likekinds
Every household has plenty of tp tubes. They make great seedling pots so why not reuse some of them instead of recycling them. :)

Supplies:

Steps:



By lalala...
Those containers that salads, cakes, and pies come in (with the dark bottoms and clear plastic dome lids) make great "terrariums" to put your seedling containers in. I cut my egg carton cells to fit in them.
On top of the refrigerator is a great place for your seedlings, providing you have a kitchen with good lighting. The refrigerator top provides heat that is important for the seeds to grow, and it is a spot where they are out of the way and won't get smashed. I usually start my plants around Feb 15. By transplant time I have some good sized zucchini, squash, tomatoes, pumpkins, and more ready to transplant over.
I usually get my seeds at the dollar store, 10 packs for a dollar, and the rest of my planting is recycled. A good sized bag of potting soil usually lasts me 3 years.
By mom-from-missouri from NW MO
By gypsygina from Oklahoma City, OK
By richard from Leicester, UK
I love to start seedlings early, and didn't have anything to put the soil and seeds in to get started so I went to the kitchen and there was my answer! You know the containers that the floor cleaning cloths come in, they are perfect for starting seeds in. You use the container part for the soil and seeds and the cover to place under the container. This works great and you're recycling too.
By Joyce from Tennessee
When I am starting to grow plants indoors, I drill a couple of holes in an empty yogurt or juicy juice container (I cut the tops off) and use them as the pots.
By Abigail from Columbus, SC
By Carolyn