Maxicrop Liquid Seaweed Plus Iron 1 qt
Best iron supplement for gardeners treating yellowing in acid-loving plants.
This liquid nutrient supplement combines pure seaweed extract with readily sequestered iron, formulated to contain 2% iron. It is designed to correct nutrient deficiency-related yellowing, known as chlorosis, particularly in acid-loving plants. The easy-to-use liquid can be applied directly to foliage as a spray or administered as a root drench for effective absorption. This product helps maintain vibrant leaf color by addressing iron deficiencies quickly and efficiently, making it a valuable addition to plant care routines.
$15.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-74%
Below average
Who it's for
- Gardeners seeking stronger roots and better stress resilience
- Plant owners struggling with yellowing leaves and nutrient deficiencies
- Growers needing flexible feeding for soil or hydroponic systems
Who should skip it
- Indoor gardeners sensitive to strong, earthy smells
- Homeowners worried about staining concrete or porous surfaces
- Budget-conscious hobbyists preferring inexpensive synthetic fertilizers
Performance breakdown
Chlorosis Correction
Rapidly restores deep green color to iron-starved foliage.
Application Versatility
Seamlessly transitions between foliar spray and root drench methods.
Nutrient Bioavailability
Sequestered iron ensures plants absorb minerals with maximum efficiency.
Acid-Loving Support
Tailored specifically for the unique needs of calcifuge plant species.
Ease of Dosing
Liquid consistency allows for precise measurement and effortless mixing.
Seaweed Synergy
Pure extract base provides essential growth stimulants alongside iron supplementation.
Key Specs
Contains 2% iron
Dimensions
3.2 × 3.2 × 10.5 in
Weight
2.42 lbs
Package Volume
1 quart
Features
- Unique combination of seaweed extract and sequestered iron
- Prevents nutrient deficiency-related yellowing (chlorosis)
- Effective when applied as a foliar spray
- Can also be used as a root drench application
- Specifically beneficial for acid-low (calcifuge) plants
What customers say
Customers consistently praise Maxicrop Liquid Seaweed Plus Iron for its exceptional quality and visible effectiveness in promoting robust plant health. Gardeners frequently report significant improvements in growth, color, and overall vigor across various plant types. A major theme is the product's strong value, noting that a little goes a long way, making it an economical choice for serious cultivation. The ease of integrating this nutrient into existing feeding schedules further solidifies its positive reception.
Know before you buy
While standard seaweed extracts provide growth stimulants and micronutrients, this formula is specifically fortified with 2% sequestered iron. This addition makes it a targeted treatment for chlorosis, or yellowing leaves, rather than just a general plant tonic.
Both methods are effective. Foliar spraying allows for faster absorption directly through the leaves to address visible yellowing, while a root drench is ideal for long-term soil health and systemic uptake.
It is specifically formulated for acid-loving plants, also known as calcifuge plants, which are more prone to iron deficiencies. While it can be used on a variety of plants, it is most beneficial for species like azaleas, blueberries, and hydrangeas.
Because the iron is sequestered, it is highly bioavailable to the plant. You should notice an improvement in leaf color within a short period, though the exact timing depends on the severity of the deficiency and the plant's growth rate.
Yes, this product is designed as a supplement rather than a complete fertilizer. It can be integrated into your existing feeding schedule to provide an extra boost of iron without interfering with your primary nutrient program.
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$16