Racist Ian Davison, 42, manufactured enough ricin to kill nine people and kept it in a jar in his kitchen for two years.
He was jailed at Newcastle Crown Court alongside his teenage son Nicky, who was a fellow member of a group known as the Aryan Strike Force and was sentenced to two years in a young offenders' institution.
Davison Snr, of Burnopfield, County Durham, previously admitted producing a chemical weapon, preparing acts of terrorism, three counts of possessing material useful to commit acts of terror and one count of possessing a prohibited weapon.
His 19-year-old son, of Annfield Plain, County Durham, was convicted of three counts of possessing material useful for acts of terror following a trial a fortnight ago. The charges related to downloading copies of the Anarchist's Cookbook and The Poor Man's James Bond on two computers.
Andrew Edis QC, prosecuting, said Davison Snr created ricin at his home in 2006 or early 2007, which was found when police raided the property in June last year and was now stored at the UK's Porton Down chemical weapons centre.
Mr Edis said: "The purpose of the violence was the creation of an international Aryan group who would establish white supremacy in white countries. They were followers of the ideology of Adolf Hitler, who they revered, and whose work Mein Kampf was among many available on their website."
Mr Edis said the ASF had around 350 members recruited via the internet, though not all were active. Other alleged members will face trial later this year.
Toby Hedworth QC, defending, said a psychological report showed Davison Snr was a "superwimp not a savage" who had a "fragile ego", he said: "A very small amount (of ricin) was eventually produced and nothing was done with it."
Passing sentence, Judge Milford told the father: "A particularly unpleasant aggravating feature of this case is that you corrupted your son. The fact he sits in the dock with you, about to go to prison with the hopes of joining the Armed Forces dashed, is the result of your appalling parenting."
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