Friday, September 26, 2008


Plectranthus kameba blooms in mid-September, continuing usually until the first freeze. If it had larger flowers, it would be in every garden; its flowers are just amazingly deep blue. The squarish stems tell you it's a mint, but it's genus consists mostly of tropical mints. (correction: see comments below... this picture is actually of Rabdosia longituba).
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Hate to tell ya, but that's not Plectranthus kameba. I believe it's 'Noshoku', a cv of Rabdosia/Isodon lonituba
lovely - is this invasive like mint? if not, i would love to have this in our gardens.
Anony... you are sspot on; I am sincerely impressed by your garden acumen... nether of these plants is exactly common.

Sky... well, rabdosias for me spread steadily, but I've seen no seedlings, and they would ve very easy to pull.

I have found Rabdosia to seed around slightly, most likely b/c I don't bother to cut them down till spring. That said, I've had fewer than a dozen volunteers in 5-6 years of growing the plant. I'm also not convinced that 'Noshoku' is, in fact, longituba. It begins to flower earlier than the species (including white and "pink" forms), has much smaller flowers, and slightly different foliage...I'd love for someone to confirm or deny
Anony... I haven't had any seedlings at all; we've had early freezes here the last three years in a row, so I doubt they've had time to form viable seeds.
You're certainly right about Noshoku being very different than longituba; see tomorrow's post.
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