How to Grow a Grapefruit Tree from Seed

I've been a little obsessed lately with growing things from seed. It all started about four years ago with a batch of guacamole and saved avocado pits. I now have two beautiful trees that need to be planted in the ground soon!

So I started experimenting with pears and citrus. So far the only success I've had is with grapefruit seeds.

Step 1: Eat a grapefruit and pull out the seeds.
Step 2: Carefully remove the outer seed coating so that the brown interior seed is exposed. Some blogs and seed preparers will say to also take off that brown covering, but none of my seeds sprouted that I did that with. I would leave it on.
Step 3: Wet a paper towel and place it inside a ziploc bag. Place the seeds inside the bag and set on a window sill that gets a lot of sun.
Step 4: Wait! It took about a week before I started to see any change in the seeds and about 12 days before I planted them in dirt. Here's what they looked like when they started to sprout: