Brian Duncan, Northern Ireland

N. bulbocodium x standard daffodils

June 8, 2018
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Categories: Bulb Information, Daffodil Types, Growing Daffodils, Hybridizing, Seedling, Species

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I was interested in Theo Sanders piece about tetraploid N. b. graellsii crossing with standard  daffodils. I wonder if he means all graellsii are tetra ploid or just the larger more robust clones? I tried these crosses for many years, without success.

In the past couple of years I’ve had several seedlings from a bulbocodium clone that I very  naughtily call N. b. akersianus (because James Akers pointed me to it’s peculiar wet rushy  habitat). It is very large, tall and robust & so I thought it might be a tetraploid. Some have green perianth segments that stay green throughout the life of the flower. It is a prolific seeder, and so I crossed it with’ Tropical Heat‘, optimistically hoping to get a sun-proof red cupped bulbocodium.

The ugly result can be seen in the pictures – the other seedlings are similar. Now I will try.

Brian

 

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One Response to N. bulbocodium x standard daffodils

  1. Theo Sanders, Germany
    Theo Sanders, Germany
    June 8, 2018 at 11:56 pm

    Brian,

    in DaffSeek you find for N. b. graellsii that it is tetraploid with 28 chromosomes. I saw at sites near Madrid little plants only and no larger clones. It is very interesting that you are successful with crosses of N. b. akersianus x standard daffodils. Is it a clone of N. b. citrinus from the district near Bordeaux and are the seedlings fertile?

    Theo