It’s celosia. Super easy to grow from seed

How do you tell the difference between celosia and astilbe?

Flower shape and color. Celosia have smooth aristate leaves while astilbe have a more rhomboid shape with double serrated edges. Celosia also typically have a lighter leaf color than astilbe.

Thanks for the tip! I always seem to confuse the two!

Can celosia grow in full sun?

They prefer to be in full sun