Yellowing Leaves Of A Choisya

Question

This shrub was established a few years ago dark green leaves and masses of flowers with fragrance Plant a Red Robin along side it last year Suggestions please

Answer 1

Yellowing can be a sign of under or overwatering, lack of nutrients, inadequate soil pH, disease or insects.

These articles should help pinpoint the problem:

https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm

https://www.gardeningknowhow.com/ornamental/shrubs/choisya/choisya-shrub-care.htm

https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm