First-Year Fertilizing of Thuja Green Giant and Junipers: When and Why to Wait

General Rule: Skip Year One

Newly planted trees need root establishment. Fertilizer (especially nitrogen) forces top growth the compromised root system can't support → stress, burn, dieback.

Exception: Sandy, Infertile Soil

If soil is nearly pure sand with no organic matter, light fertilization at planting helps. Use ½ rate, slow-release.

Fertilizer Protocol (Year 2+)

• Stop 30 days before first freeze (~Sept 1 in most zones).
• Rate: 1 lb 14-14-14 per inch trunk diameter, broadcast to drip line, water in.
• Or: ½ lb every 45–60 days during growing season.

Why Lesco 14-14-14?

Balanced NPK with micros. Slow-release = steady feed, less burn risk. Good for conifers.

Mulch > Fertilizer Year One

3 inches organic mulch does more for soil health and moisture than any fertilizer.