Pest identification
What's eating my hydrangea 'limelight'?
Aphids
Signs: Colonies on soft new shoots; sticky honeydew residue, curled or distorted young leaves
Control: Knock off with a strong jet of water; spray neem oil or insecticidal soap; encourage ladybirds
Spider mites
Signs: Fine webbing on leaf undersides; stippled, yellowing foliage — worst in hot, dry weather
Control: Increase humidity; spray undersides of leaves with insecticidal soap or neem oil every 7–10 days
Scale insects
Signs: Bumpy tan or brown shells on stems; yellowing leaves; sticky honeydew and sooty mould
Control: Scrape off manually; treat with horticultural oil in late winter or early spring to smother crawlers
Deer
Signs: Flower heads and soft shoots browsed or stripped, especially in autumn and early spring
Control: Use deer repellent sprays (reapply after rain); install physical barriers or motion-activated deterrents
Keep hydrangea 'limelight' pest-free
Healthy plants resist pests best. Get the basics right:
Hydrangea 'Limelight' pests — FAQ
What is eating my hydrangea 'limelight'?
Hydrangea paniculata 'Limelight' is relatively pest-resistant but aphids, spider mites, and scale can visit, especially in warm weather. Aphids cluster on new growth, spider mites thrive in hot dry spells, and scale settles on woody stems. Deer will browse the foliage and flowers where populations are high. Blast pests off with a strong hose jet; apply neem oil or insecticidal soap for persistent infestations.
How do I get rid of aphids on hydrangea 'limelight'?
Colonies on soft new shoots; sticky honeydew residue, curled or distorted young leaves Knock off with a strong jet of water; spray neem oil or insecticidal soap; encourage ladybirds
How do I get rid of spider mites on hydrangea 'limelight'?
Fine webbing on leaf undersides; stippled, yellowing foliage — worst in hot, dry weather Increase humidity; spray undersides of leaves with insecticidal soap or neem oil every 7–10 days
How do I get rid of scale insects on hydrangea 'limelight'?
Bumpy tan or brown shells on stems; yellowing leaves; sticky honeydew and sooty mould Scrape off manually; treat with horticultural oil in late winter or early spring to smother crawlers
How do I get rid of deer on hydrangea 'limelight'?
Flower heads and soft shoots browsed or stripped, especially in autumn and early spring Use deer repellent sprays (reapply after rain); install physical barriers or motion-activated deterrents