"Chris Hogg" wrote in message
...
I'd agree with what the other posters have said, in general the
detergents don't do any harm and may even be beneficial, with two
exceptions. Most detergents are alkaline. Repeated application of grey
water to the soil will eventually make it alkaline as well. So you
don't want to apply it too often to acid-loving plants such as
rhododendrons, camellias and some heathers, although the occasional
watering won't do any harm, especially if it's that or let the plant
die. The other, and I must admit pretty rare occasion, is when
applying grey water to plants that are poisoned by phosphate, i.e.
protaceae. I doubt if many urglers grow them, but some may grow the
Chilean Fire Tree, Embothrium coccinium, which is a member of that
family. But again, the occasional watering won't make much difference.

Agreed with everybody, when push come to shove and things are really
suffering - then almost any water is better than no water - even to the
extent of occasional alkaline water to lime haters.

Can't do much about veg crops - if what you are growing needs water, then
it's got to have it.

For ornamentals - better get used to the idea of growing subjects with a
lower water requirement.


--
Rod

My real address is rodtheweedygardeneratmyweedyisp
Just remove the weedy bits
and transplant the appropriate symbol at.