I suspect they're more likely to be upright creepers in the wild
because I saw this picture once of a giant swiss cheese plant that had
grown to what looked like a hundred feet or more by winding its way up
the trunk of a massive tree (somewhere in a rainforest in central
america).

So I hope you live in a tall house...regards, Ewald Schroder

I understand that they're really crawling plants rather than upright ones
and that they grow horizontally instead of upright.

Ours do ...

Mary

Pam in Bristol