GARDEN GURU

Q I have a 20-year-old camellia in a large pot that has been flowering brilliantly. However, a lot of its leaves are falling off and they have brown marks on them. Is there anything I can do to save the plant?

Gill Haigh

A It’s normal for evergreens to shed some older leaves as newer ones develop, but I suspect your plant needs a bit of a boost. Carefully scrape off the top layer of compost and replace with fresh ericaceous compost, and give the plant a dose of Azalea, Camellia & Rhododendron Fertiliser. Ideally, elevate your

plant on to ‘pot feet’ to ensure excess moisture can drain away.

Q Can I use the waste water from my tumble dryer tank to water my garden?

Judith Morgan

A This is essentially distilled water, making it slightly

acidic and fine for using on acid-loving plants such as magnolias and pieris. I would avoid using it to water seedlings or edibles.

Q I have a lily in my garden that I’ve been told needs splitting. Is this difficult to do? Sandra Day

A No, it’s straightforward to divide lilies. Once foliage starts to turn yellow in the autumn, cut all growth down to 5in above the soil and carefully lift clumps. Separate the dormant bulbs and replant in a sunny or partially shaded spot, setting them 4in deep,

8in apart. For the best display, you should plant in groups of three or more.