Growth Science Nutrients Rock Solid
Best bloom booster for growers seeking higher yields and improved terpene quality.
Elevate your flowering stage with Growth Science Nutrients Rock Solid, a potent liquid supplement designed to maximize yield and flower development. This formula is ideal for soil, coco, and hydroponic systems, promoting robust growth, increased flowering sites, and enhanced sugar production. Rock Solid acts as a crucial P/K booster, delivering essential phosphorus and potassium during bloom. It also refines oil and terpene profiles, adding significant value and marketability to your harvest. While it doesn't contain terpenes, it significantly enhances their development for a superior final product.
$29.99
Owner Satisfaction
4.6
/ 5
Category Rank
1939
/ 4425
#1939 in Fertilizers
Price vs Category Average
-51%
Below average
Container Size
32
/ Quart ( oz)
Who it's for
- Commercial growers aiming for maximum flower density and weight
- Hydroponic gardeners seeking clog-free, low-maintenance nutrient solutions
- Serious cultivators focused on maximizing final harvest yields
Who should skip it
- Novice growers lacking experience with precise nutrient monitoring
- Budget-conscious hobbyists prioritizing cost-effective feeding programs
- Casual gardeners who prefer flexible or simplified feeding schedules
Performance breakdown
Bloom density impact
High phosphorus and potassium levels drive significant flower mass and density.
Terpene profile enhancement
Effectively optimizes plant chemistry to boost aromatic oil and terpene production.
System versatility
Liquid formula integrates seamlessly into soil, coco, and complex hydroponic setups.
Nutrient uptake efficiency
Mineral-based composition ensures rapid absorption for immediate metabolic support during flowering.
Photosynthetic support
Optimizes energy conversion to sustain heavy flower sites through late stages.
Ease of dosing
Concentrated liquid form allows for precise, mess-free measurement in any reservoir.
Key Specs
Container Size
Quart (32 oz)
SKU
GSCRSQ
Weight
2.54 lb
UPC
855275005201
N-P-K
0 - 4 - 4.5
Nutrient Application
Hydroponic and Soil Nutrient
Nutrient Type
Inorganic Based
OMRI Certified
No
Features
- Maximizes flower formation and overall yield.
- Boosts growth and flowering sites.
- Provides essential P/K during bloom.
- Enhances oils and terpene profiles.
- Suitable for all grow mediums.
- Improves nutrient and water uptake.
- Increases photosynthetic efficiency.
- Refines final product value.
What customers say
Customers consistently praise Rock Solid for its significant impact on crop quality, focusing primarily on efficacy. Users report achieving noticeably harder, denser flowers and superior overall structure during the final growth stages. The concentrated formula delivers powerful results, making this additive a high value investment essential for maximizing yields. Growers view this nutrient not as an optional supplement, but as a necessary tool for achieving professional grade outcomes. This product is highly regarded for its ability to enhance final product density and quality.
Know before you buy
Rock Solid is designed as a bloom booster. You should introduce it once your plants have begun to form flowers, typically during the mid-to-late flowering phase, to maximize phosphorus and potassium uptake.
Yes, Rock Solid is a liquid concentrate formulated to be compatible with hydroponic systems. Because it is mineral-based and highly soluble, it is designed to move through irrigation lines without causing buildup or clogs.
No, Rock Solid has an N-P-K ratio of 0-4-4.5. It is specifically formulated to provide phosphorus and potassium for flower development without adding nitrogen, which is typically reduced during the later stages of bloom.
While Rock Solid does not contain terpenes itself, it is designed to enhance your plant's natural ability to produce them. By improving photosynthetic efficiency and nutrient uptake, it helps refine the oil and terpene profiles, leading to a more aromatic and flavorful final product.
No, Rock Solid is an inorganic, mineral-based fertilizer. It is not OMRI certified, so it is best suited for growers who prefer the precision and immediate availability of mineral nutrients.
Absolutely. This formula is versatile and performs well across all common grow mediums, including soil, coco coir, and various hydroponic setups.
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