The invention discloses a method for
grafting and propagating rhododendron hybrids. In the method, compact rhododendron hybrids are used as scion, and rhododendron cosmopolitan is used as tree stock. The scion is a current-year semi-lignified strong
branch which does not have diseases or
insect pests, have full eyes, leaves which turn green and ripe, and terminal
bud, and does not sprout or just sprouts; and the tree stock is a current-year lignified strong
branch which grows luxuriantly, does not have diseases or
insect pests, and has smooth and complete
skin. In the method, the rhododendron hybrids are grafted by a cleft
grafting method; the scion and the tree stock are covered by a
plastic bag to maintain
moisture, and water drops are prevented from immersing the
grafting joint; and sun is shaded properly after grafting, and the illumination intensity is better to be between 90 and 126mu mol.m<-2>.s<-1>, the temperature is better to be between 25 and 28 DEG C, and the
air humidity is better to be between 80 and 90 percent. The method is easy to operate, ensures low cost and
high survival rate, is favorable for improving the finished product quality of potted rhododendron hybrids, and can be widely applied to commercial production of the rhododendron
hybrid.