Leaf shine varies by variety; dull leaves can indicate spider mites (check for webs with water spray) or excess salt/chemical fertilizer. Aphids (rose lice) cluster on soft new growth; persistent infestations signal over-fertilizing. Wash off with water; they can't climb back. Honeydew from aphids also dulls leaves.
Prune once yearly, lightly (one-third). Hard pruning forces weak growth. Wind naturally keeps roses shorter.
1 tbsp Epsom salts in 2 quarts water may green leaves.
Miniature Rose Leaf Spots: Thrips and Disease Management
Yellow Leaves on Potted Grandiflora Rose in Cool Climate
Silvery Spots on Tea Rose Leaves = Rose Slugs (Sawfly Larvae)
Sunburn vs. Mildew: Diagnosing Leaf Discoloration After Spring Pruning
Why Rose Blooms Wilt Fast and What Red Leaves Mean
Lacy Leaves on Knockout Roses: Sawfly (Rose Slug) Damage
Diagnosing Yellow Leaves on Roses: Common Causes and Solutions
Late Winter Pruning of Paul's Scarlet Climber and Care for Double Knock Out Roses
Curling Leaves on Knock Out Roses: Multiple Possible Causes
Controlling Powdery Mildew on Miniature Roses
Diagnosing Blackened Rose Leaves: Spray Damage or Nutrient Issue?
Brown, Crumbling Leaf Tips on Climbing Rose: Late Frost Damage on New Foliage
Rose Bush Full of Flowers but Bare of Leaves: Causes and Patience
When to Prune Knockout Roses in Pennsylvania: Winter vs. Spring Timing
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