Not all plants are available in seed form :-) Lamiums - and certainly all the named forms - are propagated by cuttings, not from seed. That's so the cultivars will come true to type, which they will not do from seed. You can find seeds of the species, straight Lamium maculatum, but not of any named forms. You will need to purchase plants and then can increase your stock by taking cuttings. FWIW, lamium roots dead easy.

Thanks so much gardengal48! Makes perfect sense. You have saved me a lot of time because I was still looking on net for seed........No wonder.... I'll buy some as soon as I see it and start cuttings ahead of time.