Here is a picture of ‘Verdant Sparks’ pollen. Perhaps Theo can give us an opinion if it might be fertile from just looking at it. I would expect it to be triploid. Theo do you have a recipe for germinating…
The first seedling of (( Pontresina x ( Edna Earl x Rashee )) x N. viridiflorus flowers in the greenhouse. I think in the next year it will have more than one flower per stem. The pollen is highly fertile,…