Container Tree Fertilizer for Acid-Loving Trees

🍃 Old Cobblers Farm™ Wicked Plant Growth Container Tree Fertilizer for Acid-Loving Trees (4-6-4 NPK) 🪴

Acid-loving trees deserve soil that works with them—not against them. That’s why we created Old Cobblers Farm™ Wicked Plant Growth Container Tree Fertilizer for Acid-Loving Trees, a specialized 4-6-4 NPK blend designed to enhance root strength, encourage vibrant blooms, and support healthy growth in acidic environments. Ideal for compact trees and shrubs grown in containers, this formula balances nutrients while helping maintain the low pH conditions your plants love.

🌸 Perfect For These Acid-Loving Container Trees & Shrubs

Tailored for container-grown species that thrive in acidic soils:

• Blueberry (Vaccinium spp.)

• Azalea (Rhododendron spp.)

• Camellia (Camellia spp.)

• Gardenia (Gardenia jasminoides)

• Rhododendron (Rhododendron spp.)

• Japanese Maple (Acer palmatum)

• Holly (Ilex spp.)

• Magnolia (Magnolia spp.)

• Dogwood (Cornus spp.)

• Pieris (Pieris japonica)

• Leucothoe (Leucothoe spp.)

• Fothergilla (Fothergilla spp.)

• Dwarf Hydrangea (Hydrangea macrophylla)

• Heather (Calluna vulgaris)

• Sweetspire (Itea virginica)

• Mountain Laurel (Kalmia latifolia)

• Wintergreen (Gaultheria procumbens)

• Andromeda (Enkianthus spp.)

• Arbutus (Arbutus unedo)

• Dwarf Sourwood (Oxydendrum arboreum)

🧪 How to Apply

Application Frequency

• Early Spring: As new growth emerges

• Mid-Summer: To support flowering and fruiting

• Early Fall: Final dose before dormancy

Recommended Quantity

• Young Trees (1–2 years): 1 tbsp per gallon of potting mix

• Mature Trees (3+ years): 2 tbsp per gallon of potting mix

Steps to Apply

• Prepare the Soil: Wear gloves if desired. Clear away mulch or debris.

• Apply Fertilizer: Evenly sprinkle the fertilizer around the soil surface, keeping 2 inches away from the trunk or base

• Incorporate Gently: Use a hand trowel to work it into the top layer of soil

• Water Thoroughly: Helps activate nutrients and prevents root burn

🌍 Optimal Soil Conditions

• Soil pH: 4.5 – 6.0 (ideal for nutrient uptake in acid-loving trees)

• Moisture: Keep consistently moist—like a wrung-out sponge—without letting the container dry out or stay soggy

• Soil Type: Use a well-draining acidic mix (peat moss, pine bark, perlite, compost)

• Organic Matter: Enrich with peat-based compost or pine fines to buffer pH and promote microbial health

• Container Drainage: Ensure all containers have proper drainage holes to avoid root rot

Pro Tip from the Farm:
Use pine mulch or composted bark as a top dressing—it naturally supports acidity and helps retain moisture. It’s the perfect finishing touch for thriving acid-loving trees in pots.