Firmament

Here is a brand new stunning dark purple ISG from the French hybridizer Sebastien Berthier. Said by Berthier to be one of his finest creations. This is a heavy flowering hybrid with several flowers every day during its peak summer growth. Plant Firmament fairly shallowly for best results in full sun at a depth range of 6-14" from the surface.  This is a brand new hybrid so hardiness is to be determined. Tested true in zones 7-10