Hi Tui, what is happening to all the roses in the garden. The leaves are all turning brown and it looks like the whole rose is dying?

Hi Anne, it is always helpful to have photos to identify exactly what might be happening. It sounds like die-back or canker caused by fungal disease. If the shoots are wilting and turning brown from the growing tip back to the main stem of the plant or down the main stem of the plant, then it is likely to be die-back. This can be caused by overwatering or underwatering; damage to the plant (possibly from insects) where the fungal disease can enter the plant; lack of feeding and fertilising; poor pruning practices - not using sharp cutting tools and damaging the wood, not having a sloping cut when pruning for water to run off which allows water to pool and disease can enter through the cut. It is hard to cure but cut back the rose past where it is showing signs of infection with clean sharp tools and make sure the tools are cleaned after use to stop the spread of the disease. Make sure the roses are regularly fed in spring, summer and autumn, use a specially blended rose food such as Tui Rose Food or Novatec Premium fertiliser, deep water every 2-3 days depending upon the weather to encourage the roots to penetrate deeply and dead head the roses to encourage new growth and prevent disease, especially in cool wet weather. Mulch around roses to help conserve soil moisture and applications of Tui Seaweed Plant Tonic will also benefit the plant by stimulating root growth.