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Best Home & Garden Products For USDA Hardiness Zone 1a
Interior Alaska
Growing Season
Ultra-Short (<1 mo)
Winter Lows (F)
Below -60
Annual Rainfall
5-15
Soil pH
4.5-6.5 (acidic)
Organic Matter
Low-Mod (slow decomp)
Nutrient Availability
Very low; nutrients locked
Regional Characteristics
USDA Zone(s):
Survey garden bed and note deficiency symptoms. Map high-need zones.
First Fall Frost:
Sandy areas and fruiting sections need more K than shaded areas.
Avg Annual Rainfall (in):
Don't leave granules on surface in hot weather - damages plants.
Min Winter Temp (°F)
Calculate 1-2 lbs per 100 sq ft. For 10x20 garden (200 sq ft), use 2-4 lbs.
Frost-Free Days
Weigh fertilizer on kitchen scale. One cup 0-0-60 weighs ~0.5 lb.
Seasonal Distribution
Don't exceed 2 lbs per 100 sq ft per application. Split heavy doses.
Heat Zone (Days >86°F)
Broadcast granules evenly across soil surface. Work into top 2-3 inches with cultivator.
Season Length
Sandy areas and fruiting sections need more K than shaded areas.
Avg Annual Snowfall (in)
Don't spread on windy days - granules drift causing uneven application.
Temp Extremes & Variability
Water thoroughly with 1-2 inches to dissolve granules and move K into root zone.
Avg Annual Temp (°F)
Incorporation prevents salt buildup and gets K to roots faster.
Drought Freq/Severity
Don't leave granules on surface in hot weather - damages plants.
Organic Fertilizers For Your Area
Old Cobblers Farm™ Wicked Organic Seed Starter
This gentle 2-3-3 OMRI-listed formula provides the perfect nutrient balance for starting seeds indoors during long cold winters when outdoor growing seasons are extremely limited. The slow-release organic nutrients from bone char and vegetable protein meals won't burn delicate seedlings in controlled indoor environments. Cold climate gardeners benefit from the balanced phosphorus that promotes strong root development before transplanting into frigid spring soils. Perfect for cold-hardy vegetables like kale, cabbage, and Brussels sprouts popular in northern regions.
Old Cobblers Farm™ Wicked Organics 4-3-3 Fertilizer – Trees, Shrubs, Perennials
Essential for establishing cold-hardy trees and shrubs that must develop deep root systems to survive harsh winters with temperatures dropping below -40°F. The balanced NPK ratio supports both above-ground growth during short summers and critical root development for winter survival. Derived from feather meal and bone char, these slow-release nutrients remain available throughout the abbreviated growing season. Perfect for native conifers, hardy fruit trees, and perennial gardens.
Old Cobblers Farm™ Wicked Organics Blood Meal
The 12-0-0 high-nitrogen formula provides rapid green growth essential for maximizing production during extremely short 60-90 day growing seasons. Blood meal's fast-acting nitrogen helps cold climate crops like lettuce, spinach, and brassicas reach maturity before early fall frosts arrive. This OMRI-certified organic nitrogen source feeds soil microbes that remain less active in cool northern soils. Apply in spring when soil temperatures finally warm to jumpstart vegetative growth.
Old Cobblers Farm™ Wicked Organics Bone Meal
The 1-29-0 phosphorus-rich formula promotes exceptional root development critical for plant survival in regions where soil freezes 4-6 feet deep. Strong root systems help perennials, bulbs, and trees store enough energy to survive extended dormancy periods lasting 6-8 months. Bone meal's slow-release phosphorus remains available in cold soils where nutrient cycling slows dramatically. Essential for establishing hardy bulbs like tulips, daffodils, and alliums.
Old Cobblers Farm™ Wicked Organic Evergreen Fertilizer
Specifically formulated with the 4-6-4 ratio that native evergreens like spruce, pine, and fir require to maintain needle health through brutal winters. The acidifying sulfur component maintains optimal soil pH for conifers growing in alkaline glacial soils common across northern regions. Supports winter hardiness by promoting strong cell walls and adequate nutrient storage before freeze-up. Apply in early fall to help evergreens prepare for winter stress.
Old Cobblers Farm™ Wicked Organics Kelp Meal
The 1-0-2 kelp meal formula contains natural cytokinins and auxins that help plants develop increased cold tolerance and frost resistance. Trace minerals including iron, zinc, and manganese support plant health in nutrient-poor northern soils depleted by glacial activity. Kelp's natural growth hormones help extend the growing season by improving plant resilience to early fall frosts. The potassium content strengthens cell walls to prevent winter damage.
Old Cobblers Farm™ Wicked Organics Bio Char
Biochar dramatically improves water retention and nutrient holding capacity in sandy glacial soils common throughout cold climate regions. The porous carbon structure provides habitat for beneficial soil microbes that struggle to establish in cold, acidic northern soils. Biochar's long-term soil improvement benefits compound over years, building fertility in regions with naturally poor soil. Helps moderate soil temperature fluctuations during freeze-thaw cycles.
Old Cobblers Farm™ Wicked Growth Cover Crops Fertilizer
Supports establishment of winter cover crops essential for protecting bare soil from erosion during long winters with heavy snow accumulation. The balanced nutrients help cover crops like winter rye and hairy vetch establish quickly before ground freezes. Cover cropping builds organic matter in cold climate soils that naturally decompose slowly due to limited microbial activity. Green manure crops fix nitrogen and prevent nutrient leaching.
Old Cobblers Farm™ Wicked Organics Feather Meal
The 12-0-0 slow-release nitrogen from feather meal provides steady feeding throughout short growing seasons without the burn risk of synthetic fertilizers. Cold soils release nutrients more slowly, making feather meal's gradual breakdown perfectly suited to northern growing conditions. Supports heavy-feeding crops like corn, squash, and brassicas that must complete their lifecycle in limited frost-free days. The protein-based nitrogen also feeds soil biology.
Old Cobblers Farm™ Wicked Growth Fall Bulb Fertilizer
Specifically designed for fall-planted bulbs that require cold stratification to bloom, including tulips, daffodils, hyacinths, and crocuses. The phosphorus-rich formula promotes root development during fall and early winter before hard freeze sets in. Supports the energy storage bulbs need to survive extended frozen dormancy and emerge vigorously in spring. Essential for spectacular spring bulb displays that reward cold climate gardeners.
Old Cobblers Farm™ Wicked Organic Blueberry Fertilizer
The acidifying 4-6-4 formula creates optimal soil conditions for cold-hardy blueberry varieties that thrive in northern climates with long chilling hours. Wild blueberries and northern highbush varieties require acidic soil pH between 4.5-5.5 that this sulfur-enhanced fertilizer helps maintain. Provides balanced nutrition for bushes producing fruit during short summer seasons. Supports the exceptional flavor development cold climate blueberries are famous for.
Old Cobblers Farm™ Wicked Organics Magnesium Sulfate
Corrects magnesium deficiency common in acidic northern soils, preventing yellowing between leaf veins that reduces photosynthetic efficiency during limited sunlight hours. The 9.8% magnesium supports chlorophyll production essential for maximizing growth in regions with shorter days. Sulfur content helps maintain acidic soil conditions preferred by many cold-climate crops including potatoes, blueberries, and conifers. Fast-acting and immediately available.
Commercial Fertilizers For Your Area
Old Cobblers Farm™ Wicked Growth 10-10-10 Fertilizer – Multi Purpose
This perfectly balanced 10-10-10 formula delivers equal parts nitrogen, phosphorus, and potassium essential for maximizing plant growth during extremely short 60-90 day growing seasons in cold climates. The fast-acting nutrients become immediately available when cold soils finally warm in late spring, jumpstarting vegetable gardens and flower beds. Balanced NPK supports both root development for winter survival and above-ground growth for summer production. The versatile formula works on vegetables, flowers, trees, and lawns throughout northern zones.
Old Cobblers Farm™ Wicked Growth 5-10-10 Fertilizer – Multi-Use Fertilizer
The higher phosphorus and potassium in this 5-10-10 formula promotes exceptional root development critical for plant survival in regions where soil freezes 4-6 feet deep. Lower nitrogen prevents excessive top growth that won't harden off before early fall frosts arrive. Strong root systems help perennials, bulbs, and shrubs store energy for extended dormancy periods lasting 6-8 months. Perfect for fall applications preparing plants for brutal northern winters.
Old Cobblers Farm™ Wicked Growth 0-0-60 Fertilizer – Potassium
Pure potassium at 60% concentration strengthens cell walls and increases cold hardiness essential for plant survival in zones experiencing -40°F winters. Apply in late summer to help perennials, trees, and shrubs develop the winter resilience needed for northern climates. Potassium improves water regulation within plant cells, preventing the freeze damage that kills marginally hardy species. Critical supplement for fruit trees and berry bushes preparing for winter dormancy.
Old Cobblers Farm™ Wicked Growth 46-0-0 Fertilizer – Urea
The 46% nitrogen content provides rapid green growth essential for maximizing vegetable production during short northern growing seasons. Fast-acting urea helps cold climate crops like corn, brassicas, and leafy greens reach maturity before September frosts arrive. Apply when soil temperatures reach 50°F in spring to jumpstart the growing season. The concentrated formula means less product to transport and apply across large northern gardens and farms.
Old Cobblers Farm™ Wicked Growth Fall Bulb Fertilizer
Specifically formulated with the 5-10-10 ratio fall-planted bulbs need to develop extensive root systems before ground freezes. Supports tulips, daffodils, hyacinths, alliums, and crocuses that require cold stratification to bloom spectacularly in spring. Higher phosphorus promotes root growth during fall and early winter before hard freeze sets in. Essential for the stunning spring bulb displays that reward cold climate gardeners after long winters.
Old Cobblers Farm™ Wicked Growth Apple Tree Fertilizer
The 6-0-16 formula provides the nitrogen and potassium apple trees need without excess phosphorus that can accumulate in northern soils. Supports cold-hardy apple varieties that thrive in zones 3-5 with adequate winter chilling hours. High potassium content improves fruit quality, color development, and winter hardiness in established orchards. Perfect for the apple-growing regions from New England through the Upper Midwest.
Old Cobblers Farm™ Wicked Growth Cover Crops Fertilizer
Supports rapid establishment of winter cover crops essential for protecting bare soil during long winters with heavy snow accumulation. The balanced nutrients help winter rye, hairy vetch, and crimson clover establish quickly before ground freezes solid. Cover cropping prevents erosion, adds organic matter, and captures nutrients that would otherwise leach during spring snowmelt. Critical for maintaining soil health in cold climate agricultural systems.
Old Cobblers Farm™ Wicked Growth Garlic + Onion Fertilizer
The 10-10-10 balanced formula supports fall-planted garlic that develops extensive root systems over winter for vigorous spring growth. Northern regions produce the most pungent, flavorful garlic thanks to cold winter dormancy and gradual spring warming. Supports onion varieties requiring the long day lengths found at northern latitudes for proper bulb formation. Apply at planting in October for root establishment before freeze-up.
Old Cobblers Farm™ Wicked Growth Strawberry Fertilizer
The 10-5-13 formula with higher potassium supports cold-hardy strawberry varieties producing exceptional crops in short northern summers. June-bearing varieties thrive in cool climates where adequate winter chilling promotes heavy spring flowering. Higher potassium improves fruit quality, disease resistance, and winter survival of crowns. Supports the intensely flavored berries northern growing conditions produce.
Old Cobblers Farm™ Wicked Growth Blueberry Mix Fertilizer
The 10-10-10 balanced formula supports cold-hardy highbush and half-high blueberry varieties bred for northern climates. Provides nutrition for bushes producing fruit during short summer seasons when cool nights concentrate sugars. Supports the exceptional flavor development that makes northern blueberries prized by home gardeners and commercial growers alike. Apply in spring as buds break for optimal fruit production.
Old Cobblers Farm™ Wicked Growth Alpine/Rock Garden Plants Fertilizer
Perfectly formulated for alpine plants, sedums, and rock garden specimens naturally adapted to harsh mountain conditions similar to cold northern environments. The 5-10-10 ratio supports plants that thrive in poor, rocky soils with excellent drainage. Gentle nutrient levels won't overfeed plants adapted to lean growing conditions at high latitudes. Ideal for creating low-maintenance rock gardens surviving extreme cold.
Best Seed For Your Area
Old Cobblers Farm™ Wicked Tuff Turf Red Clover (Legumes)
Trifolium pratense thrives in cold climates with excellent winter hardiness down to zone 3, making it ideal for northern pastures and hay production. This nitrogen-fixing legume improves soil fertility by converting atmospheric nitrogen into plant-available forms through root nodule bacteria. Red clover establishes quickly in cool spring soils and provides high-protein forage for livestock throughout short northern growing seasons. The deep taproot accesses subsoil moisture during dry periods common in continental climates.
Old Cobblers Farm™ Wicked Tuff Turf Alsike Clover (Legumes)
Swedish clover (Trifolium hybridum) originated in cold Scandinavian climates and tolerates poorly drained, acidic soils common throughout northern regions. This cold-hardy legume survives wet conditions that kill red and white clover, making it essential for lowland pastures and flood-prone areas. Alsike clover fixes nitrogen while providing excellent forage quality for dairy cattle and wildlife food plots. The pink-white flowers attract pollinators throughout the short northern summer season.
Old Cobblers Farm™ Wicked Tuff Turf Timothy Grass (Grasses)
The 12-0-0 high-nitrogen formula provides rapid green growth essential for maximizing production during extremely short 60-90 day growing seasons. Blood meal's fast-acting nitrogen helps cold climate crops like lettuce, spinach, and brassicas reach maturity before early fall frosts arrive. This OMRI-certified organic nitrogen source feeds soil microbes that remain less active in cool northern soils. Apply in spring when soil temperatures finally warm to jumpstart vegetative growth.
Old Cobblers Farm™ Wicked Tuff Turf Kentucky Bluegrass (Grasses)
Poa pratensis creates dense, attractive lawns and pastures throughout cold climate regions with excellent winter hardiness to zone 2. This rhizomatous grass spreads to fill bare spots and recovers quickly from winter damage, drought, and traffic. Kentucky bluegrass tolerates cold soil temperatures and establishes well with fall seeding in northern zones. The dark green color and fine texture make it the standard for premium cold-climate lawns.
Old Cobblers Farm™ Wicked Tuff Turf Creeping Red Fescue (Grasses)
Festuca rubra excels in the shaded, acidic soils common throughout northern forests and provides year-round green cover in zones 3-7. This fine-textured grass tolerates poor soils, drought, and heavy shade where other species fail to establish. Creeping red fescue spreads by rhizomes to create dense stands that resist weed invasion and erosion on slopes. Essential for low-maintenance lawns, parks, and roadsides in challenging northern environments.
Old Cobblers Farm™ Wicked Growth Apple Tree Fertilizer
Bromus inermis provides excellent pasture and hay in cold climates, tolerating temperatures below -40°F and thriving throughout zones 3-5. Smooth bromegrass produces high yields of palatable forage on well-drained soils with adequate fertility. This rhizomatous grass recovers quickly from grazing and spreads to fill bare areas in pastures. Bromegrass is highly compatible with alfalfa for mixed hay production in northern regions.
Old Cobblers Farm™ Wicked Tuff Turf Alfalfa (Legumes)
Medicago sativa produces the highest-quality forage of any legume, with protein content reaching 20% or higher in cold-climate production. Winter-hardy alfalfa varieties survive zone 3 conditions when properly established and managed with adequate fall dormancy. This deep-rooted perennial fixes 200+ pounds of nitrogen per acre annually while producing 3-4 cuttings in northern regions. Alfalfa improves soil structure and provides critical pollinator habitat during bloom.
Old Cobblers Farm™ Wicked Tuff Turf Orchardgrass (Grasses)
Dactylis glomerata produces abundant spring growth in cold climates and recovers quickly after each cutting for multiple hay harvests. This bunch grass tolerates shade, making it excellent for silvopasture systems and orchards throughout northern zones. Orchardgrass establishes faster than timothy and provides higher yields on fertile soils with adequate moisture. The early spring growth provides critical early-season grazing when other forages are dormant.
Old Cobblers Farm™ Wicked Tuff Turf Birdsfoot Trefoil (Legumes)
Lotus corniculatus excels on the poorly drained, acidic, and infertile soils that challenge other legumes throughout northern regions. This non-bloating legume provides safe grazing for cattle and sheep without the frothy bloat risk of clover and alfalfa. Birdsfoot trefoil tolerates close grazing, drought, and flooding while fixing nitrogen and improving soil fertility. The condensed tannins improve protein utilization in ruminants and reduce intestinal parasites.
Old Cobblers Farm™ Wicked Growth Fall Bulb Fertilizer
The 10-5-13 formula with higher potassium supports cold-hardy strawberry varieties producing exceptional crops in short northern summers. June-bearing varieties thrive in cool climates where adequate winter chilling promotes heavy spring flowering. Higher potassium improves fruit quality, disease resistance, and winter survival of crowns. Supports the intensely flavored berries northern growing conditions produce.
Old Cobblers Farm™ Wicked Tuff Turf Perennial Ryegrass (Grasses)
Lolium perenne establishes faster than any other cool-season grass, providing quick cover and erosion control in cold climate renovation projects. This bunch grass produces excellent turf quality for sports fields, golf courses, and lawns throughout zones 3-6 with adequate winter snow cover. Perennial ryegrass's rapid germination in 5-7 days makes it ideal for overseeding thin stands and repairing winter damage. The fine texture and deep green color create attractive, wear-resistant turf.
Old Cobblers Farm™ Wicked Tuff Turf Hard Fescue (Grasses)
Festuca trachyphylla requires minimal inputs while tolerating drought, shade, poor soils, and cold winters throughout zones 3-7. This low-maintenance bunch grass forms dense stands that resist weed invasion without frequent mowing or fertilization. Hard fescue is perfect for low-input lawns, conservation areas, and roadsides in northern climates. The fine-textured foliage maintains attractive appearance through challenging environmental conditions.