Crape Myrtle Bloom Optimization: Pruning and Fertilization

Non-blooming crape myrtle among blooming siblings needs fertilization and proper pruning timing. Blooms on new wood—prune late winter.

Pruning Protocol

• When: Late winter/early spring before growth
• Deadheading: Remove spent blooms for second flush (difficult post-July)
• Structure: Open center, remove crossing/rubbing
• Avoid: Early fall pruning—prevents dormancy

Fertilization Schedule

• New plants: 1 tsp monthly (Mar-Aug) at planting hole edge
• Established: 1 lb 10-10-10 per 100 sq ft in spring
• Rate: 8-8-8, 10-10-10, 12-4-8, or 16-4-8
• Caution: Over-fertilization = vegetative growth, fewer blooms

Diagnosis for Non-Bloomer

• Check: Sun exposure (needs full sun)
• Check: Soil fertility (fertilize if deficient)
• Check: Pruning history (improper timing reduces blooms)
• Genetic: Some cultivars bloom less prolifically

Your tree's dark green leaves suggest nitrogen adequacy—may need phosphorus for flowering. Soil test ideal.