Start here
Why are my plant’s leaves turning yellow?
Check leaf age, soil moisture, roots, pests and recent changes to work out why a plant is turning yellow.
Open the guide
Solve
Look closely before you reach for a treatment
Yellow leaves, curled tips and sticky stems are clues. Turn the leaf over, feel below the surface and compare the whole plant.
Describe the clue before you choose a response.Yellow leaves—or a cluster of tiny insects?
Use the photos to describe the clue. Then check the soil, new growth and nearby plants.
Yellow leaves
Describe the pattern before naming a cause
Compare newer and older leaves, spots, veins, root-zone moisture and recent changes.
Use the eight-pattern atlas →
Clustered insects
Confirm the aphid, colony and natural enemies
Turn over new leaves and check body shape, cast skins, sticky residue and predators.
Check the seven signs →Garden notes
Join the newsletter Keep the next garden job simple.
Get practical gardening guidance and new guides by email.