1,000x QUALITY FRESH SEEDS - EMPRESS FOxGLOVE TREE / PRINCESS TREE (Paulownia Tomentosa) The Empress, Princess or Foxglove Tree, is a large rounded tree, featuring masses of beautiful purple-mauve foxglove-type flowers in late spring. Fast growing, the tree is hardy to -15oC. The seeds sprout easily when sprinkled thinly on the surface of moist, warm compost. They require light to stimulate germination. Full instructions provided. UK Seller. 1, 000 Fresh Seeds - Empress Foxglove Tree/Princess | Paulownia Tomentosa UK Seller