Thanks Peter / Tamsin,
Yes - a strange problem as I know this is not the best way to work normally. ie. CAD should give the definitive answer in terms of qty.
However, I have inherited the calculations from someone else and I need to graphically display this info in terms of a plant schedule.
The plan I am referencing has zones mapped out with quantities already labeled (in pen and ink) .
Ideally I was looking for a way to draw a polygon zone and to 'force' the spreadsheet to add say 44 Lavender to this area.
I'm trying the Meters centre method now - but I think it still requires me to calculate the centre spacing.
If not, I'll simply use call out boxes and tally them manually,
Cheers,
Nick.