Ok, so lots to look at here.
First I have 11 varieties of N. rustica, which you can see are still quite small. If you don't watch them some of the varieties are very prone to bolt in small pots. Not pictures here is one variety that started to bolt in the 3" plastic pots in the growth room so they were transplanted into 6" clay pots instead of the 1 gallon pots.
I have about a dozen N. clevelandii plants. They have a pretty strong odor, small white flowers, and small capsules that open up while the sepals are still green. I'm going to have to nurse these plants along for quite a while in order to get enough seed.
This is N. noctiflora. I don't know how it grows in the wild, but in the greenhouse it is rather wild and spindly. I am trying to tame it with tomato cages and string. There is a lot of variety maintained in this accession because it is self-incompatible. There are a number of different mating types so you have to actively cross-pollinate in order to get seed set.
Below is N. cordifolia. It has been my favorite surprise so far. I can't wait for it to flower.
This is N. undulata. As you can see, I also have it in some tomato cages because I anticipate issues taming the flower heads.
These little guys are N. acuminate. They were incredible slow to germinate, and then I lost a number of them in the growth room. With the exception of the rusticas, all the other species I'm sharing were seeded on the same day and you can kind of get a sense for differences in growth rates. These acuminate plants seem to be especially sensitive to the presence of too much water and prefer to be dry. They did much better once I got them into a sand/peat mix.