I have recently noticed that two of my lavender bushes have got yellowing leaves, can anyone suggest a solution please?
How are you growing your lavenders? At this time of year, Lavender plants can become tatty. Yellow leaves could be an issue of excess moisture. Take a look at the soil around your plant. Has it become compacted maybe? They don't like moisture sitting at the base. If it's in a pot, maybe check if it's not being over watered. These plants can thrive on almost neglect, so when flowers have faded, there is no need to water excessively. Mix in some grit if the soil is too heavy.
Thank you for the reply, we have had quite a long sumertime without rain and then quite a bit of rain recently, and I am afraid our soil is chalk and clay but this is the first time that any of them have been affected. One is an older bush and one was new last summer, I am just hoping the others don't go the same.
There is no harm in working extra grit around the areas you have grown your lavenders in. Mix it into the soil and aerate it a bit. Sometimes, nitrogen rich soils can cause base leaves to go yellow, but I don't think this will cause too much damage to your shrubs. Avoid any feeding for sure and see what happens.
Thank you, will give it a go.