I would like a wiki topic on grain characteristics. An article has alredy been started on grain specs, but I would like to see an exhaustive article on the characteristics of different base malts and specialty grains: flavours, colours, typical style useages, substitutes, any problems such as attenuation or diastatic power or potential to stick a sparge, and just a general commentary on brewers' reactions to different grains.
Growing your own hops (including)
Soil types
step by step planting process
fertilisers
Garden position
removing rhizomes
Harvesting and drying flowers.