Mayo62 said:being a newbie I haven't paid any attention to the foliage of the DL's I have bought... 
Apart from the foliage itself, what does it mean for me if a Dl is dormant, semi-evergreen or evergreen? 
And how came there to be 3 types? They all come from the same source, don't they?
Is one dominant when you cross different types?
Mayo
In your climate it may well make no difference. Do you have any daylilies where the leaves all disappear in winter?
The registered foliage habit relates to the cultivar's behaviour in the garden of the registrant, it may not behave the same way in different climates and in your climate it's possible that registered dormants may not go dormant in winter. The three types come from the original species, some of which were evergreen and some of which were deciduous (dormant). Most daylily species are deciduous. The semi-evs come somewhere in between the two but that gets complicated. Evergreen is supposed to be dominant but
@admmad can answer this aspect better than moi.
