These are some Phenakospermum guyannense stumps(?) I got a few months ago from Tropilab in Suriname.

I know that they are related to the Strelitzia family of plants and that Strelitzia don't produce rhizomes or new growth from their base or root system so am I waiting for new growth to emerge from the top like a Bird of Paradise that was cut off?

If the center goes black, is the plant dead? I cut them down today to search for some green "life". The upper core on some of them was black so I cut down until I found a green center or core. Was this the right thing to do?

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