National Horticulture Mission is being implemented from 2005-2006 onwards with the main objective of bringing holistic development of horticulture in the State. Focused attention is given to increase the production and productivity of Horticultural crops by adopting strategies such as promotion of hybrids, diversification of traditional cropping system into Hi-tech protected cultivation, high density planting, Rejuvenation of old senile and unproductive Plantation/Orchards, supply of quality planting material, encouraging pollination through bee keeping, development of infrastructure for Post Harvest Managements, crop specific programmes and intervention of suitable scientific technologies through extension functionaries etc.,
This scheme is implemented in 22 districts of Tamil Nadu viz., Ariyalur, Coimbatore, Cuddalore, Dharmapuri, Dindigul, Erode, Kanyakumari, Krishnagiri, Madurai, Perambalur, Pudukottai, Ramanathapuram, Salem, Sivagangai, Thanjavur, The Nilgiris, Theni, Tirunelveli, Tirupur, Trichy, Vellore and Villupuram.
National Horticulture Mission is implemented with fund sharing pattern of 60:40 between the Centre and State and from 2015-2016 as a sub scheme under the Mission for Integrated Development of Horticulture (MIDH).
From 2014-15 to 2017-18, an area of 55,666 Ha was covered under New area expansion and Rejuvenation of Horticulture Crops. Protected cultivation like Poly Green House, Shade Net House, Anti bird Net and Mulching was implemented in 6666.225 Ha. Under the Post Harvest Management component, 963 Pack Houses, 917 Low Cost Onion Storage structures, 5 Cold Storages, 7 Integrated Pack Houses, 30 Pre Cooling Units, 2 Integrated Cold Chain Units have been established.
For the year 2017-18, the scheme was implemented at a financial outlay of Rs.108.10Cr.
During the year 2018-19 Government of India has allocated 51% of additional fund, because of the best implementation of NHM scheme during the previous years in Tamil Nadu. The scheme will be implemented at on outlay of Rs.163.333 Crore to provide 260 Pack Houses, 500 Low Cost Onion Storage structures, 5 Cold Storages, 3 Integrated Pack Houses, 3 Pre Cooling Units, 1 Integrated Cold Chain Unit and other components.