Neptune's Harvest Organic Fish & Seaweed (2-3-1) Fertilizer 36 oz.
Neptune's Harvest Organic Fish & Seaweed (2-3-1) Fertilizer 36 oz.
Zone compatibility details
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Zone compatibility details
This variety’s zone range
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My hardiness zone
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The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatibility range of this variety before ordering.
Spring Shipping Schedule
Spring Shipping Schedule and Zone Opening Earliest Ship Dates
Note: At Park Seed, we are committed to shipping healthy live plants at the ideal planting time for your zone. In order to ensure our plants are shipped at the optimal conditions, we regularly adjust our shipping timeframes as needed. The below table reflects our current estimate of timing for rose, live plant and bulb shipping this season.
| Zone | Bareroot Roses | Container Roses | Plants & Bulbs | Sweet Potato & Avocado | Citrus | Blooming Blocks |
|---|---|---|---|---|---|---|
| 1-3 | Early-Mid May | Mid May | Mid May | Late May-Mid June | Early-Mid May | Early-Mid May |
| 4-5 | Early-Mid Apr | Late Apr-Early May | Late Apr-Early May | Mid-Late May | Late Apr-Early May | Early-Mid May |
| 6 | Mid-Late Mar | Mid-Late Apr | Mid-Late Apr | Early-Mid May | Early-Mid Apr | Early-Mid May |
| 7 | Early-Mid Mar | Mid-Late Apr | Late Mar-Early Apr | Late Apr-Mid May | Early-Mid Apr | Early-Mid May |
| 8 | Mid-Late Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |
| 9-13* | Late Jan-Mid Feb | Mid-Late Apr | Late Mar-Early Apr | Mid-Late Apr | Early-Mid Apr | Early-Mid May |

Grow Zone
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Mature Height
Mature Width
Sun / Shade
Bloom Size
need bloom size meta
Tomato Fruit Set
Days To Maturity
Fruit Weight
Soil Tolerance
Moisture
Description / Neptune's Harvest Organic Fish & Seaweed (2-3-1) Fertilizer 36 oz.
Made in USA
Neptune's Harvest Organic Fish & Seaweed Fertilizer is a gardener's go-to for boosting plant health and productivity. This 2-3-1 blend combines hydrolyzed fish (75%) and nutrient-packed seaweed (25%) to create an all-purpose, organic liquid fertilizer that works wonders on everythingvegetables, fruits, flowers, trees, and even container plants, outdoors or indoors. OMRI Listed for organic use, this environmentally friendly formula delivers essential nutrients for strong, vigorous plants.
This powerful blend helps plants handle stress betterwhether it's heat, drought, or coldand naturally strengthens resistance to pests and disease. Expect bigger harvests, more flowers, and bolder colors. Fruits and veggies grow larger and taste better, plus they stay fresh longer. By increasing natural sugar levels in plants, this fertilizer even makes them less appealing to pests, so you'll have fewer bug problems in the garden.
Use Neptune's Harvest as a foliar spray for a quick pick-me-up or as a soil drench to enrich the ground and support beneficial microbes. It's also great for seed startingjust soak seeds in a diluted mix (1 tsp per cup of water) to speed up germination. Young plants get a strong start, developing deeper roots, larger leaves, and faster growth.
This formula is made with wild-caught North Atlantic fish, processed using a cold method to preserve heat-sensitive nutrients and enzymes. Unlike fish emulsions, it contains all the natural amino acids, vitamins, Omega oils, and growth hormones plants need. The added seaweed (Ascophyllum Nodosum) is a natural biostimulant packed with trace minerals and plant-boosting compounds that encourage fast, healthy growth and stronger root systems.
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Product Details
SKU: 44507
Special Features:- Fertilizer
- Indoor Growing
- Made in USA
- Tomato aids