A. Over 20 years experience, a wide range of genetics and strong plants. Beware of exaggerated claims about “superior” tissue cultured Paulownia. Tissue culture is just another propagation method. TGG have used it from time to time for breeding stock, but our unique ex-vitro clonal propagation is more efficient in producing trees for plantations. Unlike laboratory stock, TGG plants are soon ready for growing in the real world.