How should I prune a spilled wine weigela plant to ensure healthy growth and vibrant blooms?

To prune a spilled wine weigela plant for healthy growth and vibrant blooms, trim back one-third of the oldest branches each year after flowering. Cut at a 45-degree angle just above a healthy bud or branch junction. Remove any dead or damaged branches to encourage new growth. Avoid heavy pruning, as this can reduce flowering.