Fertilizing New Shrubs After a Harsh Winter in Northern NJ

Assess Before Feeding

Winter damage (brown leaves, broken branches) is common. Prune out dead wood first. If plants leaf out normally, they likely don’t need heavy fertilizer.

Organic Approach

Apply 2–3 inches of leaf mold or compost around the base (keep off stems). This insulates roots, suppresses weeds, and slowly releases nutrients.

If Using Synthetic Fertilizer

Choose a balanced slow-release formula (e.g., 10-10-10) or one with slightly higher nitrogen (first number) for leafy growth. Apply at half the recommended rate in early spring. Avoid high nitrogen late in season.

Specifics for Your Plants

• Azaleas: Acid-loving fertilizer after bloom.
• Boxwoods, holly, laurel: Balanced feed in early spring.
• Alberta spruce: Light feed; prefers lean soil.

Mulch is the single best “fertilizer” for new shrubs.