Another note on Hillbilly, it tends to be later maturing for me here in SW Ohio. As well in SE central Ohio where I first grew it. Not that it's a faulty trait, enjoy with your late blooming daylilies.
I lean towards heirlooms over hybrids just for the variety of flavors and textures. I might have missed Green Zebra on the posted lists? It's a killer! If you can get one, do! Size and shape compares to a small Roma in my experience. I've tried other ripened greens that were enjoyable but not as memorable/desirable per my taste. Very seedy but my last saved seeds were ravaged by mice with no outdoor/garage cats. Red Zebra is tasty as well but I see no comparison other than small size and pretty skin. I find the similarity ends visually but I'm a smoker and my taste buds certainly reflect that.
My Mom has trouble with the harvest, you watch them like anything else in the garden. They get a hint of yellow and soften. Picked early they're firm like a Roma, picked late they get a bit squishy. Delicious either way, late works good with vanilla ice cream. I tend to let them go just for that. Ugly? Yeah but...I'll post a picture or youtube a video. They are that sweet at peak ripeness. I'm 7 or 8 years in with these, great in salad too but they hide. Omelettes though, ahhhh. And they show. Decent counter life plucked early.
If you want to serve a burger to impress friends with an open toasted bun, Green Zebra provides excellent shock value and wonderful fruit flavor. Every year, beyond all the gifted peak season freebies, it is the tomato friends and family call and ask for. I freeze them mixed for chili. They turn to mud in the soup but I can taste the add. I eat more in the garden than anywhere else.
It's a "must try" at the very least.
