Folks, due to space limitations in my weekly column, we were not able to include all of the propagation information on guavas. So if you do decide to grow guava, despite their invasive tendencies, here is a bit more info:
Guava grows easily from seed and the seeds remain viable for many months. They often germinate in 2 - 3 weeks but may take as long as 8 weeks. The downfall of growing from seed is that the trees will take longer to fruit and may not be the same fruit as the parent plant.
There are several methods of vegetative propagation suitable for guava. Guavas can be grown from root cuttings. Take pieces of any roots except the smallest and the very large, cut into 5 - 10 inch lengths, are place flat in a prepared bed or pot, covere with 2 - 4 inches of soil, keep moist and wait for new growth. Guava may also be grown by air-layering or from cuttings of half-ripened wood. These methods will produce clones of the parent plants that will mature and produce fruit faster than propagation by seed.
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