On Sun, 18 May 2003 19:58:22 +0900, "Gyve Turquoise"
wrote:

I've tried growing lettuces several times but they always taste quite
bitter. What is the secret of growing good lettuce? My soil is clay of pH
about 7.0 and I usually fertilise with poultry manure and chemical
fertiliser.


Lettuce gets bitter when the weather is too hot for it.

Where do you live? Is it hot summer there?

Pat