They are highly susceptible to white fly and mealy bugs aphids can also be a problem. I am currently fighting white fly all over my garden and must get them under control before everything goes back into the greenhouse. There are white flies on this plant now. White flies like the dry weather, they must be very happy.
If you like fragrant plants this is a good one. if you have the room give them a try. I got mine at logees.
be sure and check out the Garden page, there are some new pictures at the bottom of that page.