Container Shrub Fertilizer for Cold-Hardy Plants

❄️ Old Cobblers Farm™ Wicked Plant Growth Container Shrub Fertilizer for Cold-Hardy Plants (5-10-10 NPK) 🌿

Built for resilience in colder climates, Old Cobblers Farm™ Wicked Plant Growth Container Shrub Fertilizer for Cold-Hardy Plants delivers the right boost at the right time. With a 5-10-10 NPK ratio, this container-specific formula enhances strong root systems, promotes structural integrity, and supports beautiful flowering—all while helping your shrubs store energy to thrive through seasonal changes.

🌱 Perfect For These Cold-Hardy Container Shrubs

Tailored for woody ornamentals, evergreen foliage, and flowering shrubs that stand up to northern winters and chilly patio environments:

• Boxwood (Buxus spp.)

• Hydrangea (Hydrangea spp.)

• Rhododendron (Rhododendron spp.)

• Azalea (Rhododendron spp.)

• Juniper (Juniperus spp.)

• Dwarf Alberta Spruce (Picea glauca 'Conica')

• Japanese Maple (Acer palmatum)

• Spirea (Spiraea spp.)

• Lilac (Syringa spp.)

• Holly (Ilex spp.)

• Mountain Laurel (Kalmia latifolia)

• Viburnum

• Dwarf Camellia (cold-tolerant varieties)

• Pieris (Pieris japonica)

• Beautyberry (Callicarpa spp.)

• Weigela

• Mock Orange (Philadelphus spp.)

• Daphne

• Winterberry (Ilex verticillata)

• Barberry (Berberis spp.)

🧪 How to Apply

Application Frequency

• Early Spring: Feed at the first sign of new buds or leaf growth

• Mid-Summer: Reapply to sustain flowering and root development

• Late Fall: Apply lightly to support winter nutrient storage (before hard freeze)

Recommended Quantity

• Small Containers (1–3 gal): 1 tbsp (≈ 15g)

• Medium Containers (4–7 gal): 2 tbsp (≈ 30g)

• Large Containers (8–15 gal): 3 tbsp (≈ 45g)

• Extra Large Containers (16+ gal): 4 tbsp (≈ 60g)

Steps to Apply

• Moisten Soil: Ensure soil is lightly damp to help with nutrient absorption

• Distribute Evenly: Sprinkle fertilizer around the base, avoiding direct contact with stems

• Incorporate Lightly: Mix into the top 1–2 inches of soil with a trowel

• Water Thoroughly: Deeply water to activate and distribute nutrients

🌍 Ideal Soil Conditions

• Soil pH: 6.0–7.0 (slightly acidic to neutral)

• Soil Type: Well-draining container mix with peat, perlite, or vermiculite

• Moisture: Maintain even moisture—avoid both drought and soggy conditions

• Drainage: Use pots with drainage holes and elevate if needed to prevent water pooling

• Organic Matter: Add compost or pine bark fines to enrich soil biology and nutrient retention

Pro Tip from the Farm:
For conifers or evergreens, use your final fall feeding before the first freeze to help lock in potassium and phosphorus—critical nutrients for cold-season stress resistance.