what kind of guava? Some guavas are very drought tolerant and don't like regular water.

Is this a tropical guava? For most fruit trees, its a bit hard to get one to flower when it's a seedling AND potted. Whatever that triggers it to say its mature and ready to fruit just takes that much longer. Guava can fruit and flower within 2-3yrs when planted out in the ground, so if its potted it may take twice as long. I had only one seedling that flowered after 3yrs in the pot but it never held any fruit. Maybe yours will flower soon.

Is it possible that the pruning could be taking the flowering tips off? You may want to try using a fertilizer that contains iron. [I purchased one that is originally made for aquatic plants.] Maybe a rusty nail in the soil would help. My grandmother used one to make her Hayden mango tree bloom and fruit when the flowers failed to do so. The tree lived many years and bore tons of fruit that I still consider the absolute best I've ever eaten.

My tropical guava flowered and fruited in a pot... not gonna stay that way long! :o) mine doesn't need any pruning... but it has a tendency to send up suckers????

Guavas seem to have that tendency to send up suckers. Sometimes you could plant out these suckers if they have roots on them.

I don't know what kind of guava seed I bought. I got the package of seeds at an airport in Hawaii. The package doesn't specify what variety. When pruned, not all branches are pruned, just those that have gotten too big. Soil is allowed to mostly dry out between waterings, not kept wet or moist all the time. I add a capfull of liquid iron fertilizer 1-2 times per year. 10-10-10 1-2 times per year. The tree looks great! very healthy. Never any flowers though. Any ideas?

Seedlings are going to take a long while, some might never. With the exception of a few, most fruit trees you should purchase grafted trees. These will fruit within a year.

We have grafted gauvas, less then a year in 3 gallon around 4 feet tall and fruiting.

One day it might fruit.

Guava trees also grow white flowers that are 1-inch wide and have five petals. The fruit on cattely guavas has a reddish or purple color when it ripens and its flesh is white.