"Chris Hogg" wrote in message
...

On Tue, 30 May 2017 16:58:21 +0100, David
wrote:

Going off topic a bit.
In the past you used to be able to get calcified seaweed but this seems
to have gone off the market in the last few years.

I may be thinking of something else, but IIRC there were deposits of
calcified seaweed off Plymouth and off Falmouth, that were extensively
dredged in the not-too-distant past. Whether the deposits have been
exhausted, or whether they've stopped dredging for environmental
reasons, e.g. causing damage to the sea bed flora and fauna, I don't
know, but either might explain why it's not around any more.

Maxicrop extract is the best well known. They sell it at the local Trago
Mills, so must be available at all the big farm shops, DIY outlets etc.

The dilution rate is quite fantastic and IIRC a small bottle lasted me a
whole season :-

http://tinyurl.com/y6ud3gfc