Publication exerpts from the Horticultural Sciences Department, UF/IFAS Extension
by J.Johathan H. Crane, Carlos F. Balerdi and Ian Maquire
Most avocado varieties do not come true from seed (i.e., a seed will not render the same variety), so they must be propagated vegetatively. Cleft grafting is the preferred method of propagation in Florida, although veneer grafting is also used. Young, vigorously growing seedlings are used for rootstocks, and terminals of leafy shoots are used for scion material. Grafting is most successful during the cooler months from November through February or March, but can be done from June through March if plant material is available. Established trees may be top-worked by cleft grafting scions of the desired varieties on stumps of cut-back trees or by veneer grafting new shoots arising from stumped trees. Propagation by cuttings and air-layering has not been successful.
Typically, seedlings of 'Lula' and 'Waldin' are used as rootstocks in Florida because of their uniformity, vigor, and availability of seeds.
For more Information on Grafting refer to our Grafting Techniques
Crane, Johathan H., Balerdi, Carlos F. and Maquire, Ian. "Avocados Growing in the Home Landscape." edis.ifas.ufl.edu. This document is Circular 1034, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. First published as FC-3: Mar. 1983. Revised Jan. 1998; Aug. 2001. Rewritten May 2003; Sept. 2005. Revised Aug. 2007. Reviewed July 2013. Web. 11 Oct. 2013.
Published 2013 LR. Updated 7 Oct. 2015 LR