All these plants and flowerpots are not just 3D models, but 3D models for which there are
real life counterparts and can be purchased for landscaping your projects from Treez Collection.

Plants:
Olive Wild with fruits (10.28807N, height 2200mm): https://treez.ru/cat/good/10.28807N.html?SECTION_ID=3972 
Olive Topiary Natural (Prime series) (10.0624238N, height 1300mm): https://treez.ru/cat/good/10.0624238N.html?SECTION_ID=3972 
Lemongrass grass dusty green in a pot (20.0224070GG, height 700mm): https://treez.ru/cat/good/20.0224070GG.html 
Grass Sedge bush without sultans (20.1040X, height 600mm): https://treez.ru/cat/good/20.1040X.html 

Flowerpot:
TREEZ Effectory Flowerpot - Ron - Classic Bowl - Oxidized Copper (height 450mm and 570mm): https://treez.ru/cat/good/41.33-25-24-127-RG.html 

Those who work in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, the BRDF field will be empty. Select Blinn, Phong or Ward - what is preferable for you.

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR.