14 May 2008

Digitostigma branching

Posted by Stuart under: Cacti .

Digitostigma (Astrophytum) caput-medusaeThis is my first year keeping Digitostigma caput-medusae. I have a couple of double-headed plants, which are tubercle grafts, grafted on the spineless form of Ferocactus glaucescens (thanks to Marlon for putting me straight on the identity of the stock).

They didn’t adjust to the first spell of bright sunlight this year to start with. They went a deep purple colour, which is something some of my other Astrophytums do anyway. Of more concern though was that the tentacles lost turgidity and went extremely floppy, as it took a while for their stocks to decide to take up water. Now, though, they’re growing strongly, and this plant has surprised me by putting out an offset which is shown circled here.

2 Comments so far...

Marlon Machado Says:

10 July 2008 at 8:25 pm.

Hi Suart,

The grafting stock of the plant in your picture is the spineless form of Ferocactus glaucescens. This species has been much used to graft digitostigmas, and I saw many of such grafts at ELK last year (2007).

Cheers,

Marlon.

Stuart Says:

11 July 2008 at 9:18 am.

Thanks Marlon - post amended accordingly!

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