Raised Bed Berry Fertilizer for Cold-Hardy Berries
$37.99
🍓 Old Cobblers Farm™ Raised Bed Berry Fertilizer for Cold-Hardy Berries
NPK Ratio: 5-10-10
A phosphorus- and potassium-rich fertilizer formulated to support cold-hardy berry plants in raised beds. Encourages strong root systems, vigorous flowering, and robust fruit production in plants that thrive in cooler climates.
✅ 20 Cold-Hardy Berries That Benefit from 5-10-10 Fertilizer
Raspberry (Rubus idaeus)
Blackberry (Rubus fruticosus)
Strawberry (Fragaria × ananassa)
Blueberry (Northern Highbush – Vaccinium corymbosum)
Gooseberry (Ribes uva-crispa)
Red Currant (Ribes rubrum)
Black Currant (Ribes nigrum)
Cranberry (Vaccinium macrocarpon)
Lingonberry (Vaccinium vitis-idaea)
Elderberry (Sambucus nigra)
Haskap (Honeyberry) (Lonicera caerulea)
Serviceberry (Amelanchier alnifolia)
Tayberry (Rubus fruticosus × idaeus)
Loganberry (Rubus × loganobaccus)
Boysenberry (Rubus × hybrid)
Juneberry (Amelanchier spp.)
Thimbleberry (Rubus parviflorus)
Chokeberry (Aronia melanocarpa)
Red Huckleberry (Vaccinium parvifolium)
Cloudberry (Rubus chamaemorus)
🧤 Application Guide
📅 Frequency of Application
| Season | Purpose |
|---|---|
| Early Spring | Stimulate root development and early-season growth |
| Mid-Summer | Support ongoing fruiting and plant vigor post-harvest |
| Late Fall (Optional) | Light feeding to build root reserves (avoid in harsh zones) |
📏 Application Rates
| Area Size | Fertilizer Amount |
|---|---|
| 100 sq ft | 1–2 lbs (0.45–0.9 kg) in spring |
| 100 sq ft (follow-up) | 0.5–1 lb (0.23–0.45 kg) in mid-summer/fall |
🛠️ How to Apply
Soil Prep
Remove mulch/debris
Loosen top 2–3 inches of soil
Test soil pH if possible (ideal range: 5.5–6.5, or 4.5–5.5 for blueberries)
Application
Evenly broadcast fertilizer around plant bases (avoid direct stem contact)
Gently work it into topsoil with a rake or trowel
Water thoroughly to activate nutrients
🌱 Ideal Soil Conditions
| Soil Factor | Optimal Condition |
|---|---|
| pH Level | 5.5–6.5 for most berries, 4.5–5.5 for blueberries |
| Soil Type | Well-draining loamy soil; amend sandy/clay beds with compost or peat |
| Moisture | Consistently moist, never waterlogged; mulch to conserve moisture |
| Organic Matter | Incorporate compost, pine fines, or aged manure regularly |
| Drainage | Raised beds typically offer ideal drainage—ensure beds don’t dry out |
Quantity
