How many arborvitae do i need for 50 feet?

I'm happy to tell you that there are definitely more than 10 arborvitae seeds.

I'd say there are about 10 to 15 Rheingold arborvitae.

Hey, when you're working with a 50-foot space, the first thing to think about is the general spacing. The arborvitae plant is pretty full and dense, so if it's about 3 to 4 feet tall, you can expect it to fill up that 50-foot area nicely. So, you can do the math: 50 feet / 4 feet / arborvitae = 12.5 arborvitae. That means you'll need about 13 arborvitae to make your 50-foot yard look great!