hi all.. i have a house on a limestone bed.. practically.. and my lemon,
grapefruit and orange tree all have yellowing leaves.
i have read somewhere, that sulphure added to the soil.. makes the ph
lower.. i read the directions on the packet.. and added the amt.. just
wondered if anyone knew.. how long before they saw a change.

i live in perth.. thanks anyone.. if anyone knows.

tracey