There was a green friendly monster which I think lived in a greenhouse. It had to ask questions to an owl who lived in a tree.

Very vague I know... I think late 80's early 90's.

Also another programme was a sort of puppet show and had bogs everywhere?

I think was around the same time?

I think I found what you are looking for... "Greenclaws" (1988) - IMDb user comments

Here's some pictures too just scroll down... Google Image Result for http://www.classickidstv.co.uk/wiki/images/thumb/0/0f/Greenclaws_Logo_Drawing.jpg/120px-Greenclaws_Logo_Drawing.jpg

Yeah its greenclaws ! I used to love it x