All of mine grew four to five feet tall and eventually produced flowers, but the difference I noted most was that some had thick and full foliage whereas some were thin and sparse. What I wanted was the thick foliage, not flowers. I tried planting them farther apart, but there were some that were still sparse anyhow. Perhaps the seed supply isn't stabilized yet and more years will contribute to the stability of the seed. I hope so.

Jeanne

Thanks Jeanne. Mine are full and sparse also but I do like the flowers. I have them all over the garden so there does not seem to be a spacing issue. Love the smell though.
Kat