Rose Guide
Why Are My Rose Leaves Turning Yellow
Yellowing rose leaves usually mean one of four things: overwatering or poor drainage, a nutrient deficiency, black spot disease, or simply heat and age. Check drainage and look for spots first.
Start by ruling out disease: if the yellow leaves also carry black, fringed spots, the cause is black spot, not nutrition. If the leaves are clean but yellowing from the bottom up, suspect overwatering or poor drainage — roses hate wet feet.
Uniform pale-yellow new growth points to a nutrient shortage, often nitrogen or iron; a balanced feed and correct soil pH usually fix it. Some lower-leaf yellowing in high summer heat is normal aging and no cause for alarm.