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:
Spathiphyllum in a pot (20.1019N, height 700mm): https://treez.ru/cat/good/20.1019N.html 
Ficus Benjamin De Luxe (10.31807N, height 2100mm): https://treez.ru/cat/good/10.31805N.html 
Calathea in a pot (20.1010N, height 750mm and 20.1010XL, height 850mm): https://treez.ru/cat/good/20.1010.html 
Pittosporum ball (10.40202N, height 750mm): https://treez.ru/cat/good/10.40202N.html?SECTION_ID=3971 

Flowerpot:
TREEZ Effectory Flowerpot - Gloss - Low Design Bowl - White Glossy Varnish (height 300mm): https://treez.ru/cat/good/41.3321-05-067-WH.html?SECTION_ID=4058 
Flowerpot TREEZ Effectory - Gloss - Design-Bowl - White glossy varnish (height 500m): https://treez.ru/cat/good/41.3321-05-132-WH.html 
TREEZ Effectory Flowerpot - Gloss - High Cone Design - White Glossy Varnish (height 970mm and 1170mm): https://treez.ru/cat/good/41.3320-05-036-WH.html 
TREEZ Effectory Flowerpot - Gloss - High Round Cone - White Glossy Varnish (height 680mm): https://treez.ru/cat/good/41.3321-05-066-WH.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.