My plants grow in large containers. This one freely produces scapes so it makes a nice clump. I haven't really counted or measured, but it doesn't reach the registered height or approach the registered bud count, though it grows well above the foliage for a nice display. It generally blooms for about six weeks and has rebloomed giving blooms in September that year. It has set pods readily for me and also using the pollen, though the pollen route hasn't been used as much. The mahogany bloom with intense gold heart is very distinctive. I don't have any other daylilies with comparable colors.
My conditions here tend to be not very plant friendly to most plants. I was reminded harshly of that this year. Early on, 'Nyiragongo' showed some weakness in its growth and I moved it where it sits in a tub with a few inches of water and gets a lot of shade after the early morning hours. It recovered and bloomed well, though shorter than usual. It currently looks quite healthy. Growing the plants in large containers combined with the climate here make me hesitate to give too broad an endorsement of how a plant may grow otherwise. I particularly don't like to use a broad brush if it hasn't done well for me. This one has grown and bloomed well for a while now, but it has had care to ensure that it has the chance due to the distinctive colors. It did okay this year with the help.
Here's a photo from this year. The container holding the plant is sitting in one of those yellow cattle tubs showing behind the blooms. They hold about 16 gallons of water.
