Annual Vinca Seedling Care: Light, Water, and Fertilizer Balance

Vinca seedlings need warmth, bright light, and a careful watering/feeding regimen to avoid yellowing.

• Delay fertilizer until 2 weeks after emergence; then use half-strength every 10 days.
• Allow soil to dry slightly between waterings—damp, not wet.
• Fluorescent lights are fine; keep 3–4 inches above plants.

Overwatering is the #1 cause of yellowing; it leaches nutrients and promotes root rot.