Paeonia ostii(syn: Paeonia suffruticosa ssp. ostii) From China's Gansu, Hunan, and surrounding provinces comes an endangered tree peony species that was first published in 1992 and named after Italian peony expert, Dr. Gian Lupo Osti. Similar to Paeonia rockii, the 5' tall Paeonia ostii has narrower leaves and is topped in very early spring (mid April in NC) with over 100 large, 6 8" wide, sweetly fragrant flowers. Paeonia ostii is unquestionably one of the finest