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 (http://www.imdb.com/title/tt0292799/usercomments)

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 (http://images.google.com/imgres?imgurl=http://www.classickidstv.co.uk/wiki/images/thumb/0/0f/Greenclaws_Logo_Drawing.jpg/120px-Greenclaws_Logo_Drawing.jpg&imgrefurl=http://www.classickidstv.co.uk/wiki/Greenclaws&h=120&w=120&sz=6&hl=en&start=2&um=1&tbnid=i7_W9imeiT786M:&tbnh=88&tbnw=88&prev=/images%3Fq%3Dgreenclaws,%2B1988%26um%3D1%26hl%3Den %26rls%3DRNWM,RNWM:2007-37,RNWM:en%26sa%3DN)

Yeah its greenclaws ! I used to love it x