Douglas Firs Yellowing in NJ: Soil Test First, Then Holly-tone, Not Miracid

Fertilizer Strategy

Conifers prefer neutral to slightly acid soil—test first.
Miracid = high N, frequent, "crash" cycle. Switch to Holly-tone (granular, slow-release, balanced).
Apply early spring & early fall (½ rate in fall).

1" per week (pan test). Mulch with pine straw (holds moisture, adds acid). After 2 years, if soil pH OK, switch to 10-10-10.

Conifers are light feeders. Excess N = weak growth, winter injury.

Conifers: Selling Loquat Seedlings: Timing, Hardiness, and Fruiting Expectations; Transplanted Fir Mortality: Proper Technique for Future Success; Dealing with a Slimy, Odorous Tree Stump; Utilizing Tree Tops After Logging; Willow Tree Encroachment and Property Line Liability; Managing Borers in Japanese Maples: Systemic Insecticides and Tree Health; Transplanting Large Thuja (Arborvitae): Pro Equipment Needed; Growing Catawba Trees from Seed Pods: What You Need to Know; Diagnosing Pencil Holly Decline: Watering and Root Rot; Mimosa Tree Identification and Saving a Stressed Dogwood

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