Diagnosing Leaf Scorch on 'Wine & Roses' Weigela in Kansas

Six Weigela 'Wine & Roses' planted April in south central Kansas (zone 6b) on south side of house, 2.5 ft from foundation. Full sun, well-drained soil, watered every 1–2 days. Some show leaf scorch (brown crispy tips/edges); others don't. Nursery said it's normal for new plants, recommended light trim to "encourage root spread."

Expert Analysis

• Scorch causes: Hot sun + wet leaves (water splash), strong wind (hot or cold), reflected heat from wall.
• Red-leaved varieties (like Wine & Roses) have less chlorophyll, so they need sun for color but are more prone to scorch.
• Pruning does NOT encourage root spread—that's a myth.
• Watering: Only in evening; avoid wetting foliage.

Outlook

Scorch is unsightly but rarely fatal. Mature plants may scorch less, but red foliage always needs sun. Mulch, evening watering, and wind protection help.

Follow-Up: Why 'Red Leaved' Matters

Red leaves lack chlorophyll (green pigment). They don't become more sun-tolerant with age, but they require sun to maintain color. Scorch risk remains.