Worth the wait @Alan Clark2 in Liverpool a beautiful butterfly and a lovely Buddleia. I have this white version too, but have never heard of anyone growing this plant from seed. Was it difficult to germinate? I have purple, blue, white and also Globosa in the garden, they are all in flower now.
Guernsey Donkey2, the seeds germinated quickly and in large numbers. I killed most of them by overwatering, but that was my fault, due to inexperience.
floralies, the seeds were not for any specific variety, and will not come true from seed anyway. what you get is a matter of pure luck. This is where I got mine:-
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https://www.chilternseeds.co.uk/item_222A_buddleja_davidii_mixed_cultivars