Hardly take credit for good growing as I received these (and more)about a month ago in bud.

I believe they came to Mexico bare root (kalapanatropicals) because the lava rock is common here. All were purchase in lava rock.

Although I grow phals, dens,in lava rock and cats in pumice and lava rock I would appreciate anyone with oncs,wils, milt or Z experience with lava rock.

Although the zygo is called blue bird (who would have used 'purple bird')the second picture is true to color.

Here is a link that might be useful: pics