Here's a basic mulch bed:
There was already the end of the other bed there to make one end. The ground was already mulched with a layer of cardboard and some straw. We made some holes with a digging pole and bashed in some posts with a mallet. Then we nailed on the planks Danny made.
We put in a 12-15cm depth of topsoil and then about an inch of well rotted manure. Then we put on about 5-7cm depth of good compost. If I can afford to get some I'll add a few handfulls of rock dust and some mycorhyzzal fungi to the bed with some wood ash and some bonemeal.
The temperature is around 3c or so freezing at night. I planted 5 yucca plants (Yet to be identified) that Matt gave me on the northern end of the new herb garden.
I put the morus alba and nigra outside to stratify for 4 weeks.
