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:
Thuja Brabant fluffy spherical street (height 600mm, 800mm, 900mm): https://treez.ru/cat/good/10.0224074.html 

Flowerpot:
Flowerpot TREEZ ERGO - Hard Rock - Cylindrical Bowl - Sand gray beige (height 570mm): https://treez.ru/cat/good/41.33-17-23-102-BEG.html 
Planter TREEZ ERGO - Hard Rock - Cylindrical Bowl - Black Sand (height 440mm): https://treez.ru/cat/good/41.33-17-23-102-BLS.html 
Flowerpot TREEZ ERGO - Hard Rock - High round cylinder - Sand gray beige (height 740mm): https://treez.ru/cat/good/41.33-17-23-103-BEG.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.