'Ditch lilies' are not lilies at all but rather a variety of Hemerocallis or daylily. Lilium lancifolium will grow to a range of heights - anywhere from 2.5' to over 6' - depending on growing conditions and bulb maturity. btw, tiger lilies - Lilium lancifolium - are a primary vector for lily mosaic virus and are generally NOT recommended to be planted with other types of lilies. They are unaffected by the virus but most other lily species and hybrids are and will develop distorted foliage and stunted growth and eventually weaken the bulbs to the point where they will die.

I don't think I have the bright red beetle, ugh. I have heard people call just about any lily with spots 'tiger lily'. The ones I have remind me of the ones that we had when I was a kid. Bright orange with lots of spots. I just measured, the tallest is 16 inches, with most of them being 12/14 in, with quite a few 6/8 inches. I remember the ones one the farm being taller....perhaps I was just shorter....lol

Since both are common names that apply to several lily species, feel free to call it whatever you like :-) It is most likley to be a selection of either L. lancifolium (used to be L. tigrinium, hence 'tiger lily') or L. superbum (what is usually called 'Turk's cap') - the flowers are almost identical in appearance but one is a native species and somewhat rare these days and the other is an Asian import. The import - lancifolium - will have black bulbils produced along the stem in the leaf axils. The native does not. I think I see bulblis in your first photo so I would assume this is Lilium lancifolium.

Yes, they are called bulbils and some lilies grow them on the stalks. Plant them about 2 inches deep in well draining soil in full sun. Do not over water them. They can take 3 or 4 years to produce flowers. Good luck with them.