Jim, It as done very well here planted in the ground in a plastic tunnel (flowering generously at a height of 200cm-6ft). Now planted in the ground of a garden on the méditerranen seaside the plant does not perform well. Indeed this genus needs heat and humidity. Greetings Lauw de Jager From: "James Waddick" <firstname.lastname@example.org> > I didn't find a wiki page for this genus and it may be a bit > marginal since it is barely rhizomatous. A few species have been in > cultivation for a while and I have grown some, but new to me is this > one, the true Neomarica caerulea 'Regina'. This is a big plant, > leaves can get to 6 ft and flowers are rich blue or so say the > literature. I have been growing a plant for nearly 2 years* with lots > of foliage and healthy looks, but not a flower. > Does anyone on PBS grow and flower this with success. What is > the key- more/less water more/less fertilizing ?? > Can anyway one share results and post pix? > * I grow mine in about a 5 gall black nursery pot, never exposed to > below 35 F, grown in a soilless mix with extra drainage and in mostly > shade. Indoors now that fall is here.