That is awesome Harry, the little ones look really cool when they're tiny. Are all those on top flowers and will they all make seeds? That would be crazy.

In Euphorbia language they are called cyatha (i think)

No seeds this year - maybe I need two?

Harry

Did you try hand pollination? If you didn't really do anything and don't have any pollinators, there's no wind? then no seeds?

I really don't want to look up the reproductive processes of this euphprbia, but my curiosity may get the better of me.

I believe Howard is real expert with euphorbia seeds - catching them, and growing new plants too...

This plant makes either male or female flowers (cyathia) and is not self- fertile. They can also change sex. If I remember correctly, your plant is currently male. You need to find a mate for your plant. For everything you ever wanted know about Euphorbia, visit Euphorbia.de

That's a bright idea. Did you come up with that yourself or is it a trick someone taught you?

Isn't that also a good way to prevent cross pollination when you are trying to get seeds that grow true to the parents and not an accidental hybrid?

This would certainly work to that end. If I know I want to cross something like a Euphorbia, I usually will isolate it in the greenhouse. The problem is that one's plants don't always cooperate; you may not get both the male and female plants to be fertile at the same time. This can be especially true when trying to pollinate monecious plants such as Euphorbia francoisii. This Euphorbia is monecious but not selfing so you need pollen from one plant to pollinate another plant.

Lots of plants are like that, I guess they got it all figured out. Lol.

Howard, as for your getting a male and a female fertile at the right time, have you tried freezing the fresh pollen as soon as it is ready to be used for pollination and then when your girl is ready, you'll have the pollen available (and probably viable).