Down to Earth Acid Mix Fertilizer
Best organic fertilizer for acid-loving plants like blueberries and rhododendrons.
This is the gold standard for keeping blueberries and rhododendrons thriving in low-pH soil. While it requires a more deliberate seasonal application schedule than standard all-purpose feeds, the trade-off is significantly more vibrant blooms and hardier root systems that actually survive the winter.
$17.95
at
Pinetree Garden Seeds
Who it's for
- Home orchardists prioritizing fruit yield over excessive foliage
- Gardeners growing blueberries, azaleas, and other acid-loving plants
- Organic growers seeking steady, low-maintenance plant nutrition
Who should skip it
- Gardeners needing an immediate fix for nutrient-deficient plants
- Budget-conscious shoppers preferring conventional synthetic fertilizers
- Pet owners concerned about attracting animals to garden beds
Performance breakdown
Nutrient Balance
The 4-3-6 ratio perfectly supports the specific needs of acid-loving plants.
Ingredient Quality
Premium organic inputs like fish bone meal ensure slow, steady nutrient release.
Application Versatility
Effective for both seasonal growth spurts and essential winter root protection.
Soil Compatibility
Expertly formulated to maintain the low pH levels these plants demand.
Ease of Use
Granular form allows for simple, mess-free distribution around shrub bases.
Growth Efficacy
Consistently produces deeper foliage color and more abundant seasonal blooms.
Key Specs
NPK Ratio
4-3-6
Package Weight
5 LB
Fertilizer Type
All-natural
Derived from
Cottonseed meal, fish bone meal, langbeinite, rock phosphate, kelp meal, and humates
Target Plant Type
Acid-Loving Plants, Trees and Shrubs
Fertilizer Form
Granular
Organic Certified
true
Season of Application
Spring, Fall
Container Weight
5 pounds
Nitrogen Percentage
4%
Know before you buy
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