Hah!Really interesting - I've grown shallots here (with watering) that produced really well, but never garlic.
Also wondering about the cultivation techniques shown - I know what mulching is about, but what's the cardboard for? I know some of the local permaculture people use it in a particular way.
Long about January I'll take the wood and cardboard off and cover with mulch. I'll till it in March and plant about April. Cardboard back down between the rows. The cardboard, starting off as wood, decomposes releasing lots of nitrogen but that's another thing.

