Old Cobblers Farm™ Shrub Fertilizer for Cold Hardy Shrubs
$37.99
❄️ Cold-Hardy Shrub Fertilizer – Balanced 10-10-10 Formula for Rugged, Resilient Growth in Harsh Climates
Strengthen your landscape with Old Cobblers Farm Cold-Hardy Shrub Fertilizer (10-10-10 NPK) — a powerful, balanced formula designed to support vigorous growth, winter resilience, and year-round vitality in cold-tolerant shrubs and evergreens. Whether you're planting in USDA Zones 3–7 or facing seasonal frost, this fertilizer delivers the essential nutrients needed to fuel strong branches, rich foliage, and deep root systems that endure the elements.
Perfect for foundation plantings, windbreaks, privacy hedges, and ornamental shrub beds in cool or temperate climates.
✅ Key Benefits:
💪 Built for Resilience
Supports woody tissue development and hardy root systems that can withstand cold snaps, frost heaving, and seasonal stress.
🍃 Balanced, Year-Round Nutrition
10% Nitrogen: Encourages thick, green leaf growth without excessive top-heavy development.
10% Phosphorus: Enhances root depth and flowering potential.
10% Potassium: Boosts resistance to cold damage, pests, and drought.
🌱 Slow-Release for Steady Feeding
Feeds evenly over time for consistent nourishment throughout spring, summer, and fall.
🌍 Fortifies Soil Health
Improves soil structure and microbial activity, especially in compacted or depleted northern soils.
🧊 Perfect For These Cold-Hardy Shrubs:
Boxwood
Juniper
Arborvitae
Spruce Shrubs
Holly (winter-hardy varieties)
Viburnum
Forsythia
Dogwood (red & yellow twig)
Lilac
Spirea
Potentilla
Ninebark
Winterberry (Ilex verticillata)
Dwarf Pine and Cedar shrubs
Snowberry
Barberry
Serviceberry (Amelanchier)
🧪 How to Use:
New Plantings: Blend ½ to 1 cup into planting soil for immediate root zone support.
Established Shrubs:
Small Shrubs: ½–1 cup
Medium Shrubs: 1–2 cups
Large Shrubs: 2–3 cups
Apply evenly around the drip line. Avoid direct contact with trunk or stems. Lightly mix into the soil and water deeply.
Feeding Schedule:
Apply in early spring as growth resumes, then every 6–8 weeks through the growing season. Avoid late-fall applications in colder zones to prevent tender growth before frost.
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