Several Double Knockouts planted. Three have no blooms, no buds, healthy leaves. Nursery said deadheading → blooms in 14 days. Weeks passed. Zone 7. Others blooming beautifully.
New plants need time to root before heavy blooming. Energy goes to roots first.
If non-bloomers are in different spot (shade, drainage, soil), that's the cause.
Healthy canes + leaves = no worry. Roses often grow at expense of flowers initially. Knockouts are self-cleaning—deadheading adds minimal blooms.
Normal. Flowers will come in weeks. No action needed.
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