I recently received some guarateed fresh but dry, Royal Poinciana (Delonix regia) seeds and seeds for yellow and dwarf cultivars of Delonix regia. We keep them upper section refrigerated to retain their freshness. Question: Despite utilizing several methods including scarification, planting in peat for high ph content, and using regular sterlized potting mix I have been a failure at raising even one seedling. Before I run out of the remaining seeds, does anyone with greater knowledge have any suggestions? I live in z10 Southern California and in a sunny but coastal climate. We greatly admire the Royal Poinciana trees we have seen in Hawaii and Florida.