I looked at the reference regarding the pyrophytic spp. Just to clarify, there are many spp that benefit from fires. There are only three known species that are totally dependent on fires. These are L montana, the closely related L sargeantii, and the relatively new L lutzeyeri. L montana seems to be the only one in cultivation. I'd be curious to see how the L montana responds to various treatments. Id imagine one could experiment on other species and see if blooming is improved. My L montana are only just finishing their first year .. so it will be awhile. Tim Chapman