This clone has a greater concentration of color in the center of its 3/8 inch wide flower! Named after the orchid collector Heinrich Hartmann in 1874, this east Australian orchid naturally grows as a lithophyte on rocks. As a result, this species grows best in a fast draining bark mix. Allow the mix to dry between waterings, except when in spike. This orchid produces side growths develops into a multi-growth specimen over time.