From Aggie Horticulture, we found this article on bluebonnets which mentions transplanting rosettes of bluebonnets, with the following two paragraphs:
"To avoid possible problems with seed germination, many people will want to use transplants instead. Transplants, being older, tougher plants, are much easier to handle and establish. The transplant is also easier to space so that stand establishment in formal plantings is assured. Transplants as well as scarified seed of white, pink, and 'Worthington Blue' bluebonnets are available to accentuate and complement the beauty of the more common blue variety.
One way to ensure successful bluebonnet bloom from seed or transplants is to plant them in an ideal location. Ideal can be defined with one word, sunny. Bluebonnets will not perform well if grown in the shade or in an area which receives less than 8-10 hours of direct sunlight. If grown in a shaded area, the plant will be tall and spindly with few blooms."