Container Tree Fertilizer for Cold-Hardy Trees

❄️ Old Cobblers Farm™ Wicked Plant Growth Container Tree Fertilizer for Cold-Hardy Trees (5-10-10 NPK) 🪴

Keep your cold-hardy trees thriving year-round with Old Cobblers Farm™ Wicked Plant Growth Container Tree Fertilizer, thoughtfully blended with a 5-10-10 NPK ratio. This formulation prioritizes strong root development and resilience, making it ideal for trees grown in containers that need extra support through seasonal transitions and colder climates. Whether you're growing dwarf evergreens or compact fruit trees, this fertilizer strengthens your trees from the soil up.

🌲 Perfect For These Cold-Hardy Container Trees

Formulated for hardy trees that thrive in pots and resist cold stress:

• Dwarf Alberta Spruce (Picea glauca 'Conica')

• Japanese Maple (Acer palmatum)

• Dwarf Blue Spruce (Picea pungens 'Globosa')

• Boxwood (Buxus spp.)

• Dwarf Korean Lilac (Syringa meyeri 'Palibin')

• Crabapple (Malus spp., dwarf varieties)

• Dwarf Hinoki Cypress (Chamaecyparis obtusa 'Nana Gracilis')

• Serviceberry (Amelanchier spp.)

• Juniper (Juniperus spp., compact cultivars)

• Dwarf Birch (Betula spp.)

• Aronia (Aronia melanocarpa)

• Dwarf Redbud (Cercis canadensis 'Ace of Hearts')

• Black Chokeberry (Aronia melanocarpa)

• Dwarf Magnolia (Magnolia stellata)

• Compact Viburnum (Viburnum opulus 'Nanum')

• Spirea (Spiraea japonica, compact types)

• Witch Hazel (Hamamelis spp.)

• Dwarf Hawthorn (Crataegus spp.)

• Dwarf Ginkgo (Ginkgo biloba ‘Mariken’)

• Dwarf Apple Trees (cold-tolerant cultivars)

🧪 How to Apply

Application Frequency

• Early Spring: First application as new growth appears

• Mid-Summer: Second dose to support ongoing development

• Late Fall: Final application to prep for winter dormancy

Recommended Quantity

• Young Trees (1–3 years): 1 tbsp per gallon of potting mix

• Mature Trees (4+ years): 2 tbsp per gallon of potting mix

Steps to Apply

• Prepare the Soil: Wear gloves, remove debris from container surface

• Apply Fertilizer: Sprinkle evenly around the soil’s surface, keeping 2" away from the trunk

• Gently Mix In: Use a hand trowel or rake to blend into the topsoil

• Water Thoroughly: Activate the nutrients by watering the container evenly

🌍 Optimal Soil Conditions

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

• pH Range: Slightly acidic to neutral (6.0 – 7.0)

• Moisture: Keep evenly moist, but never waterlogged

• Drainage: Ensure containers have clear drainage holes to avoid root rot

• Protection: Shield containers from extreme cold snaps or strong winter winds if possible

Pro Tip from the Farm:
Container trees are more vulnerable to freeze-thaw cycles. Pair this fertilizer with a layer of mulch and cold-season care to ensure your trees stay strong and rooted through the winter.