Regarding this, how big do clusia get?
20 to 25 feet tall
Also to know, are clusia roots invasive?
Answer #1 · Maple Tree's Answer · Hi Marcie-I have never grown the clusia shrubs or trees but have found they are a popular shrub or tree in warmer southern climates. They are not considered to have an invasive root system. Even planted in the ground they may still develop these aerial roots at times.
In the tropics - its original area - Clusia enjoys partial shade and fertile, fresh, well-drained soil. At home, you will plant it in a mix of peat potting soil and loam by placing it in filtered light and at a temperature not falling below 15 ° C.