Deregistered Sydney doctor Andrew Katelaris was convicted of growing nearly 50,000 cannabis plants near Dungog a decade ago.
"This is a community plant, there's no argument about it and the law needs to wake up."
Doctor Katelaris works at the Ubuntu clinic and called on Premier Mike Baird to do more to help those wanting to purchase medicinal cannabis.
Mr Footer said he was not doing anything wrong and it was time for cultivation laws to change.
Clinic calls for law change
"I've taken it into my hands to go against the law and I don't have a problem with that."
He was recently reprimanded by the Health Care Complaints Commission for injecting two ovarian cancer patients with cannabis oil.
The clinic made a submission to a senate inquiry last year saying it caters for those suffering late-stage cancer, children with epilepsy, and people with a range of other medical conditions.
Advocates demand action from Premier
Workers at the clinic called for more action from the New South Wales Government to make medicinal cannabis more accessible.
A New South Wales government website said sourcing cannabis was "a matter for adults with a terminal illness and their carers".
COREOGRAFÍA/DIRECCIÓN: Fabiola Zérega y Zoimar Mijares
INTÉRPRETES: Fabiola Zérega y Zoimar Mijares
UBUNTU TERESA CARREÑO | CARACAS (VENEZUELA)
En la vida estamos en constante comunicación con nuestros pensamientos, en ellos hablamos con el Yo interno que nos invita a reflexionar o analizar comportamientos y actitudes, hasta nos riñe por no hacer caso en situaciones. Podemos jugar, pelear o reír y allí siempre está esa voz que nos aconseja, nos dicta o nos pone a cavilar y, en diversas ocasiones hasta nos disgustamos con ella. Pero forma parte de nuestra existencia, siempre está presente y nos acompañará hasta el final.