Lean / well draining soil
Hello, significant other wants a humming bird garden,I am new to all this and looking on web found these two recipe's for lean /well draining soil.
1. three parts coarse grit or stone chips,one part garden soil,one part peat or compost.
2. 9 parts coarse sand ,5 parts peat ,4 part pumice. Plants will be in 10' x 6'raised beds 16" - 18" deep starting from scratch ( no topsoil and hard as heck ). Salvia dorii,Salvia pachpylla,Salvia nemorasa,Stachy's coccinea,Achillea kellereri,Kniphofia hirsuta,Penstemon eatoni,Penstemon pinifolius,Penstemon virens, Agastache acapulco. I have a tree farm close by to purchase topsoil. Either plain screened ( tan dirt very little in the way of humus or compost)or mixed with sand and bark mulch.
Thinking of using the latter and mixing in concrete sand ( coarsest I can find ) and some decomposed granite or expanded shale if i can find any in bulk. Am I on the right track ANY and all help appreciated.