Plectranthus effusus var. longitubus (syn. Rabdosia, then Isodon)


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Think of this as a woodland Salvia which blooms in the Fall. This Japanese jewel brings an unexpected and welcome shot of color to the shade garden in Fall with airy panicles to 3 or 4 feet holding zillions of small tubular blue-purple flowers. Something nice to look if you are overloaded on the reds-oranges-yellows classic colors. Our staff plant nerd Cindy reports that she loves this in her garden so there you have it for local testimonials.


Plant Type

  • Perennial / Bulb

Mature Size


Hardiness Zones

  • Zone 6a (-10 °F)
  • Zone 6b (-5 °F)
  • Zone 7a (0 °F)
  • Zone 7b (5 °F)
  • Zone 8a (10 °F)
  • Zone 8b (15 °F)
  • Zone 9a (20 °F)
  • Zone 9b (25 °F)

Sun Exposure

  • Part Shade - Part Sun
  • Shade

Water Needs

  • Moderate
  • Moist

Bloom Time

  • Autumn
  • Deer Resistant Plants