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:
Sansevieria bush green (20.6282N, height 950mm): https://treez.ru/cat/good/20.6280N_20.6282N.html 
Philodendron Xanadu Large bush (10.51103N, height 1000mm): https://treez.ru/cat/good/10.51103N.html 
Calathea largeleaf green-burgundy in a pot (20.1015XL, height 850mm): https://treez.ru/cat/good/20.1015.html 

Flowerpot:
TREEZ Effectory Flowerpot - Savage Garden - Bowl - King (height 260mm and 290mm): https://treez.ru/cat/good/41.33-25-24-126-OR.html 
TREEZ Effectory Flowerpot - Savage Garden - Design Vase - King (height 430mm): https://treez.ru/cat/good/41.33-25-24-125-OR.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.