Thank you all. Jo Ann, lovely candle houses aren't they,, a lost art and unknowing generations. I started this thread so that when i go container hunting in future i will take my camera along and you all can can see the variety and how a artisans mind works. Every artisan seems to have his own favourite designs.
No soil, no moisture, well there are plants that hate both. They love to grow in cracks and creveasses. You can appreciate one which seems to be growing in living rock.
Regards,
Masud.