At the entrance to the garden, a flower bed has been set up dedicated mainly to the Poaceae family (formerly Graminaceae), which are the most widespread herbaceous plants on the planet, with a total of around 8,000 species.  

Species belonging to the Poaceae family or otherwise having a graminoid appearance (e.g. genus Carex) are sometimes little appreciated. In general, they are difficult to distinguish and have such inconspicuous flowers that they seem insignificant; moreover, this group is home to the main allergenic species. In reality, they are very important species for herbivorous animals, wild and domestic, and for the very survival of humans. 

They are also decisive species for the characterisation of certain environments, e.g. the forests and thickets of the Karst differ from those in the hills and foothills of the Alps due to the presence of the autumn moor-grass (Sesleria autumnalis). In the dedicated flowerbed, it is possible to observe the tor-grass (Brachypodium rupestre), a species of scrub and woodland edge, some characteristic species of the dry Karst grassland such as the erect brome (Bromopsis erecta), scented grass (Chrysopogon gryllus), fairy flax (Stipa eriocaulis subsp. eriocaulis), rush-leaved moor-grass (Sesleria juncifolia subsp. juncifolia), Volga fescue (Festuca valesiaca), dwarf sedge lesser sedge (Carex humilis) and some meadow grasses such as false oat grass (Arrhenatherum elatius subsp. elatius), cocksfoot (Dactylis glomerata subsp. glomerata) and common quaking-grass (Briza media).