Fertilizing Red Rocket Crape Myrtle for Maximum Blooms in Zone 8b

Best Fertilizer Approach

Aged cow manure — spread 2–3 inches around the drip line (not against trunk) in early spring, midsummer, and late summer. Provides slow-release phosphorus and potassium for flowering without excessive nitrogen.

Why Not High Nitrogen?

Nitrogen promotes leafy growth at the expense of flowers. Crape myrtles bloom on new wood — you want balanced vigor, not rampant shoots.

Additional Tips

• Full sun (6+ hours) is non-negotiable for heavy bloom.
• Water deeply during dry spells in summer.
• Prune in late winter (remove crossing branches, seed heads) — not fall.
• Mulch 2–3 inches to conserve moisture.

Young Plant Note

At 1 foot tall, your tree is establishing roots. Bloom quantity will increase each year as the canopy expands.