Pollination of Pineapple Guava, please help
I'm afraid my recall of high school biology is lacking, and this may go a little beyond that anyway.
Yesterday I bought a Pineapple Guava bush from a nearby nursery (Feijoa sellowiana) after having tried the fruit from a grocery store for the first time last weekend and finding it very nice.
I would like to ensure that I get fruit from my new plant. The tag says "plant two" for fruit or something to that effect. It didn't say "two cultivars" or "two varieties". All of the tags for the 5 plants or so they had there were identical. There was no indication of cultivar type on any of them.
The sales staff hadn't clue one. They told me I needed to buy two of them if I wanted to plant fruit, but some very basic questioning made it clear that they didn't know what they were talking about.
I asked if these were seedlings and they didn't know. I'm not sure if they even knew what that meant.
To further add to my confusion, a Google search revealed that several sources claim that the Pineapple Guavas that they offer are self fertile.
To add a little more to the mystery, from a previous trip to this same nursery (when I first saw a pineapple guava) a different sales person gave me a card with the latin name of the plant and also what may be the name of their wholesale supplier. That turns out to be Northwoods Nursery (which apparently is affiliated with One Green World). At One Green World's website they offer Pineapple Guavas which are seedlings (and more expensive than what I paid).
1. If it is a seedling than it may or may not be self fertile?
2. If I get two seedlings from the same source it is pretty likely that they will polinate each other?
3. The bushes where I bought mine looked identical to one another. Is it possible that they are genetically identical, such as from cuttings? (in which case planting two wouldn't help with fertility, correct?)