Foxy Lady:
Are you talking about those cute little lucky bamboo house plants?
They don't need much at all
A little food now and then and lots of water
What I was talking about earlier was some variety of woody bamboo which is prolific and spreads better than any screen I have ever seen.  But you can't plant it near buildings.  You'll have big trouble.

Rednaz23: There may be something in powdered milk which affects the ph or the potassium or the nitrogen in the soil
I don't think calcium would help tomatoes. They're not bones!  LOL

It's an interesting idea
I'll check it out