"keith kent" wrote ...
Hello ,i have a Calamondin and a Lemon tree.
I continue to struggle to get nice green leafs , i have been feeding with
a winter and summer citrus feed in rain water.
I have tested with a TDS meter the strength of the summer feed 150 ppm and
it seems very weak to me as i would think they are heavy feeders.Standard
plant feed are approx 1000 ppm or more .
What is the best feed to use ?

I give ours a dose of sequestered iron every spring as they come out of
their winter quarters and go outside, normally March time.
I also feed summer and winter feed changing with the clocks but I also chuck
a handful of Chicken Manure Pellets on the soil of each one a couple of
times a year for that extra something. Orchids seem to love those pellets
too BTW. Occasionally they get fed with normal liquid feed at normal
strength but I usually flush the pots with clean water between feeds to
flush out any residue.
If they are really looking a bit sickly then repot into ericaceous compost
with added grit.

--
Regards
Bob Hobden
just W. of London