FoxFarm Bush Doctor Cal-Mag Qt
Best organic supplement for gardeners seeking stronger plants and higher yields.
Enhance your plants' health and yield with FoxFarm Bush Doctor Cal-Mag. This OMRI listed and CDFA registered organic input material delivers essential calcium and magnesium, crucial for strengthening plant cell walls and promoting fruit development. Derived from natural sources, it supports vigorous growth in vegetables, flowers, and trees. Ideal for organic gardening enthusiasts, this liquid concentrate ensures your plants receive the vital nutrients needed for a thriving, productive garden. Trust FoxFarm for superior organic plant nutrition.
$15.95
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4300
#50 in Fertilizers
Price vs Category Average
-74%
Below average
Package Size
1
/ quart
Who it's for
- Botanists wanting extra iron support for vibrant chlorophyll production
- Gardeners needing fast recovery for yellowing or stunted plants
- FoxFarm loyalists seeking seamless integration into existing feeding schedules
Who should skip it
- Beginners who struggle with precise measuring and concentrated formulas
- Growers who prefer not to manually adjust solution pH levels
- Budget-conscious hobbyists looking for the most affordable nutrient options
Performance breakdown
Organic Compliance
Dual OMRI and CDFA certification ensures strict adherence to organic standards.
Nutrient Bioavailability
Soy protein hydrolysate base significantly improves nutrient uptake for stressed plants.
Application Versatility
Highly effective across diverse plant species from vegetables to indoor ornamentals.
Cellular Structural Support
High calcium concentration provides a robust foundation for stronger plant stems.
Concentrate Potency
A little goes a long way, offering excellent value per feeding.
Solubility Ease
Requires thorough mixing to prevent settling in irrigation or spray systems.
Key Specs
Package Size
1 quart
Calcium Content
3%
Magnesium Content
0.9%
Organic Certification
OMRI listed
Input Material Status
Registered CDFA organic input material
Derived From
Calcium carbonate, magnesium sulfate and soy protein hydrolysate
Fertilizer Source
Organic
Target Plant Type
Vegetables, Flowers, Trees and Shrubs, Houseplants
Features
- Provides essential calcium and magnesium
- Strengthens plant cell walls
- Aids in fruit development
- OMRI listed for organic use
- CDFA organic input material
- Derived from natural sources
- Supports robust plant health
- Ideal for vegetables and flowers
What customers say
FoxFarm Bush Doctor Cal Mag is highly regarded for its exceptional quality and rapid effectiveness. Users consistently report that it quickly addresses nutrient deficiencies, resulting in noticeably healthier, greener plants. Its ease of use is a significant advantage, as it mixes easily into existing feeding routines without complex steps. This reliable performance and simple application make it a valuable supplement for promoting superior plant health and robust growth, proving its worth through visible results.
Know before you buy
Yes, this product is OMRI listed and registered as a CDFA organic input material, making it suitable for use in certified organic gardening practices.
Cal-Mag provides essential calcium and magnesium to strengthen plant cell walls and support healthy fruit development. It is particularly useful for preventing common nutrient deficiencies that can stunt growth or cause leaf yellowing.
It is versatile enough for a wide range of plants, including vegetables, flowers, trees, shrubs, and indoor houseplants. It supports robust health across these various plant types.
No, this formula is not water-soluble. You should ensure it is well-mixed into your irrigation or feeding solution before application to ensure even distribution.
The nutrients are derived from natural sources, specifically calcium carbonate, magnesium sulfate, and soy protein hydrolysate.
Still have a question?
Ask Hayley anything about this product before you decide.