Neptune's Harvest Rose & Flowering 2-6-4 32 oz. (1 qt.) Organic Fertilizer
Best organic liquid fertilizer for vibrant, high-yield flowering plants.
Neptune's Harvest Rose & Flowering 2-6-4 is an organic liquid fertilizer designed to enhance the vibrancy and bloom production of your flowering plants. Derived from natural sources, it nourishes foliage and maximizes flowering potential for abundant, healthy blossoms. This easy-to-use concentrate is suitable for both indoor and outdoor plants, offering over 60 micronutrients for a comprehensive plant "multivitamin" effect. It also improves soil's ability to retain nutrients and water, boosting overall plant health and potentially reducing the need for pesticides.
$18.95
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-69%
Below average
NPK Ratio
264
/ --
Who it's for
- Gardeners seeking vibrant, high-yield floral displays
- Eco-conscious pet owners prioritizing safe, healthy soil
- Plant enthusiasts wanting comprehensive, nutrient-dense organic care
Who should skip it
- Homeowners sensitive to strong, lingering outdoor smells
- Users relying on automated drip or fine-mist irrigation
- Budget-focused gardeners prioritizing low-cost synthetic alternatives
Performance breakdown
Bloom Stimulation
High phosphorus content drives exceptional bud density and vibrant floral displays.
Nutrient Density
Over 60 micronutrients provide a comprehensive multivitamin effect for flowering plants.
Application Versatility
Liquid concentrate formula works seamlessly for both indoor and outdoor gardening.
Soil Health Impact
Organic composition actively improves moisture retention and long-term soil structure.
Ease of Use
Simple liquid dilution makes consistent feeding effortless for any skill level.
Organic Integrity
NOP compliant certification ensures strictly natural ingredients for eco-conscious growers.
Key Specs
NPK Ratio
2-6-4
Organic Status
NOP Compliant
Volume
1 Quart (32 oz.)
Form
Liquid Concentrate
Nitrogen
2%
Phosphorus
6%
Potassium
4%
Application Method
Soil Drench
Features
- Boosts vigor and bud density in flowering plants.
- Made with natural, organic ingredients.
- Promotes healthy foliage and vibrant blooms.
- Suitable for indoor and outdoor plants.
- Enhances plant health and nutrient retention.
- Provides over 60 essential micronutrients.
- Easy-to-use liquid concentrate formula.
- NOP Compliant organic certification.
What customers say
This organic fertilizer earns high praise for dramatically improving plant health and bloom production, especially on roses. Users consistently note larger, more vibrant flowers shortly after application. The 2-6-4 formula delivers essential phosphorus for prolific flowering without synthetic chemicals, appealing to environmentally conscious gardeners. While the premium price is noted, customers feel the superior, concentrated results justify the investment. The primary drawback mentioned across reviews is the strong, lingering fishy odor common to organic, fish based products. Overall, this is viewed as a top tier choice for maximizing floral output, provided users accept the inherent aroma trade-off.
Know before you buy
For best results, apply this liquid concentrate during the active growing seasons of spring, summer, and fall. Because it is a gentle organic formula, it can be integrated into your regular watering routine, but always check the label for specific dilution ratios based on your plant type.
This formula is perfectly safe and effective for both indoor houseplants and outdoor flower beds. Its balanced 2-6-4 NPK ratio provides the essential micronutrients needed to support blooms in containers and garden soil alike.
As an organic, fish-based fertilizer, it may have a noticeable scent immediately after application. However, this odor typically dissipates quickly once the product is watered into the soil.
The NPK ratio indicates the percentage of nitrogen, phosphorus, and potassium. The higher middle number (6% phosphorus) is specifically formulated to encourage robust bud development and vibrant flower production, while the nitrogen and potassium support overall foliage health and root strength.
Neptune's Harvest Rose & Flowering is NOP compliant and made from natural, organic ingredients. While it is generally considered safer than synthetic chemical fertilizers, it is always best practice to keep pets and children away from the area until the product has fully soaked into the soil.
This product is designed as a soil drench. You will need to dilute the concentrate with water according to the instructions on the bottle and apply it directly to the soil around the base of your plants to ensure the nutrients reach the root zone.
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$19