Your description (long stems blooming at tips in big clumps) screams **climbing rose**, not Knock Out. Knock Outs are shrubby, repeat-blooming on new wood.
Climbers bloom on **old wood**. Your deadheading below the first leaf may have removed next year's flowering wood. Plus, no fertilizing, no structural pruning.
Roses are a specialty. Go to **Allexperts → Gardening → Roses** for a dedicated rosarian. They'll give precise pruning, feeding, and training advice for your Atlanta (Zone 7b/8a) climate.
Don't severe-prune yet—get expert eyes on them first.
Knockout Rose Black Spot: Copper Failure, Aggressive Fungicide Rescue
Preserving a Loved One's Roses: Propagating from Cuttings
Identifying and Treating Scale Insects on Roses and Evergreens
15-Year-Old Roses Not Blooming in Partial Shade: Too Little Sun
Fertilizing New Mini Roses: Why High-Phosphorus Fertilizer Burns in Winter
Overwintering Large Numbers of Potted Roses: Garage Dormancy vs. Greenhouse Growth
Winter Protection for Young 'Double Delight' Roses in Ohio: Skip the Mason Jar
Pruning Knock Out Roses in Georgia: Annual Hard Cutback Works
Managing Aphids and Black Spot on Multiple Rose Varieties in Kentucky
Indoor Mini Roses: Aphids, Fungus Gnats, and the Humidity Fix
Moving Gift Miniature Roses Outdoors in Western New York: Timing and Care for Zone 5
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