Raspberries: Soil Recommendations in-ground and in-containers
I am a raspberry addict that recently moved to a place in Los Angeles that has a few huge trees obscuring the sun to my backyard, which is ten feet below the main house and is blocked by a six feet fence all around. So basically, there's not a lot of sun in my backyard. Check out video here if you want: https://vimeo.com/60921556#t=191
The soil is terrible. Impacted clay.
I have a south-facing walkway that seems to get more sun that im thinking of building a narrow planter box to put raspberries in.
My question is: What is the current state of thinking in amending the soil for perfect raspberry-ness? (im hearing a lot of amending-is-bad all of a sudden). And fertilizer?
And what is the current state of thinking for the perfect raspberry container mix?