Earth Juice SeaBlast Grow is a water-soluble dry plant food formulated to promote vigorous vegetative growth. The 20 lb bag is suited to production-scale grows and is compatible with foliage plants as well as the vegetative phase of flowering and fruiting crops. Mix to solution and feed through any irrigation method.
Earth Juice SeaBlast Grow Specifications
Key product details compiled from manufacturer documentation and the product label.
| Specification | Value |
|---|---|
| Brand | Earth Juice |
| Product Line | SeaBlast |
| Package Size | 20 lb |
| Shipping Weight | ~16 lb |
| Nutrient Form | Water-soluble dry powder |
| Growth Stage | Vegetative |
| Crop Types | Foliage plants; flowering and fruiting plants (growth phase) |
Why Choose Earth Juice SeaBlast Grow
SeaBlast Grow is built around a simple use case: getting plants through vegetative growth with a water-soluble formula that dissolves cleanly and feeds through drip lines, hand watering, or overhead irrigation without clogging.
- Water-soluble convenience. Unlike granular or pellet fertilizers that require soil incorporation, SeaBlast Grow dissolves in water and delivers nutrients directly to roots via any liquid-feed method.
- Broad crop compatibility. The formula is labeled for both pure foliage plants and the vegetative stage of flowering and fruiting crops, making it useful across a mixed grow room or greenhouse operation.
- Production-scale packaging. The 20 lb bag reduces per-feed cost compared to smaller retail sizes and cuts down on packaging waste over a full grow season.
- Earth Juice SeaBlast line continuity. SeaBlast Grow is part of a matched product line that includes SeaBlast Bloom and SeaBlast Transition, so growers can carry one brand of dry soluble nutrients through the full crop cycle without switching programs.
Best Uses for Earth Juice SeaBlast Grow
SeaBlast Grow is best matched to vegetative-phase feeding programs where a clean-dissolving dry concentrate is preferred over liquids. Common applications include:
- Hydroponic reservoirs. Mix to target EC and add to recirculating or drain-to-waste systems. Water-soluble powders meter precisely and keep reservoir volumes manageable compared to liquid concentrates.
- Greenhouse and outdoor foliage crops. Leafy crops — lettuces, herbs, spinach, and similar — are in a permanent vegetative state and benefit from a nitrogen-forward formula throughout their production cycle.
- Vegetative phase of fruiting and flowering crops. Tomatoes, peppers, cucumbers, and similar crops need strong vegetative development before transitioning to bloom. SeaBlast Grow supports that phase and pairs with a bloom formula at the switch.
- Stock plants and mother rooms. Mother plants kept in permanent vegetative state for cloning benefit from consistent vegetative feeding; a 20 lb bag provides enough product to feed a mother room for an extended period.
- Drip and fertigation systems. Water-soluble powders are compatible with injectors and fertigation equipment when mixed in a stock solution, reducing the logistics overhead of liquid nutrient drums.
If you are also running a bloom cycle, consider pairing SeaBlast Grow with a compatible organic bloom supplement. For root-zone health during vegetative growth, a microbial inoculant like Advanced Nutrients Tarantula can be used alongside SeaBlast Grow to support colonization during the establishment phase. Growers running organic programs sometimes add a molasses source to feed microbial populations — Earth Juice Hi-Brix Molasses is a natural companion product in the same brand family.
Sources & Further Reading
Earth Juice does not maintain a public brand website. Product specifications and features have been compiled from manufacturer documentation and authorized distributor catalogs.














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