Once Aryans began settled life Rishis, compiled number of vedic hymns which were later documented. Rig Veda the oldest book of Aryans was followed by Sama Veda, Yajur Veda and Atharva Veda. Later Brahmanas, Aryankas, Upanishadas, Epics of Ramayana and Mahabharata, Purana, Sushrut Samhita Charak Samhita Buddhist and Jain literature was compiled.

Along with these :

1	Kautilyas’s Arthashastra
2	Panini’s Ashtadhyani
3	Manu Smriti
4	Amarsimha’s Amarakosha
5	Patanjali’s Mahabhashya
6	Varahamihira’s Brihat Samhita
7	Vatsayan’s Pramododyan and Kamsutra
8	Taittiriya Samhita
9	Vajasaneyi Samhita
10	Kaildas’s Ritu Samhara
11	Bann’s Harshacharita
12	Medhatithi’s Abhidhanratnamala
13	Gunaratna’s Saddasana Samuchhaya
14	Udayana’s Prthviniraparyam
15	Dharmottara’s Nyayavindutika
16	Shankar Mishra’s Upaskara
17	Pandit Narhari’s Raaj Nighantu
18	Dhanvatari Nighantu
19	Kashyapa’s Krishi Sukti
20	Parashara’s Krishi Parashara
21	Surapala’s Vrikshayurveda
22	Tamil Samgam Literature
23	Someshwara Deva’s Manasollasa
24	Shukraniti
25	Shrangadhra’s Upavana Vinoda

and many many other texts contain information on different aspects about biodiversity, plant science, agriculture, horticulture, arboriculture, gardening.