I ate a grapefruit last month and decided to make the seeds into trees if possible.
Here is what we started with:
Then I did some interesting things with the seeds. This is how I sprouted them.
I transplanted the grapefruit seeds/seedlings into a few containers and kept them in the kitchen. It's still too cold outside at night (it's supposed to get down to 32 degrees tonight) so they are relegated to our kitchen window ledge. Here is the plant that is doing the best:
Absolutely beautiful! I can't wait to see it in a few more weeks! I'm hoping it will be ready to transplant outside when we find a house to buy....