See if there's any way to get another roof vent - you will really appreciate it. Unless you're running out of room so fast you'll need to upgrade the size before you upgrade the ventilation!

How big is the greenhouse? One vent might not be adequate to really get the air moving through the roof space. I always think at least one either side is needed on even a 6' X 8'.

Blimey Ross that was quick! Just goes to show what a difference grafting can make I suppose!

A couple of mine did it last year Terry. Other than looking unsightly it doesn't seem to have affected them. They're growing fine but not flowering (but then not many of my plants are flowering this year )

Great flowers Chris, especially the Cabaret.

They changed the gift aid rules a number of years ago so that you can only claim it on a donation, not a standard ticket charged for entry. By making it slightly more than the standard price they seem to be able to claim gift aid on the full amount.

Thanks Phil. I don't disagree with any of that. Pretty sure these are not selfed (but you never can be sure!) - I kept the anthers well out of the way of the stigma and have one fruit on the Helm's Neue and two on the Chamaelobivia and they're all looking very nice and plump so hopefully very full o...

Thanks Brian and interesting stuff. I have managed to get a Hildewintera 'Helm's Neue' and Chamaelobivia to accept the colademononis pollen so hopefully these may either be amenable to a back cross or I can self the progeny to get the intended results. If I can get some pollen before the final colad...

Thanks guys. No source of gamma rays (that I'm aware of!) I also only have one colademononis plant so, unless it is self-fertile (which I don't think it is as I didn't get any seed set last year) I don't know that I could use that to trick the plant. In fact I wonder if getting colademononis pollen ...

I wonder if I can tap into your collective knowledge please? I am trying to make some hybrids of colademononis. I've managed to get a Chamaelobivia hybrid to accept colademononis pollen but I can't seem to get the colademononis to accept pollen of Chamaelobivia or Echinopsis. I'm using cotton buds t...