Store liquid fertilizer in a cool, stable place away from direct sunlight and major temperature swings. Do not let the product freeze. Direct sunlight can encourage condensation inside the bottle, and that can reduce product quality over time.

Always close the lid tightly after each use. Before your next application, shake well so the natural ingredients are evenly mixed.

Good storage habits are especially important for natural products because they contain organic materials that can separate, thicken, or develop odor when mishandled.

For Neptune’s Harvest fertilizers, there is typically no required waiting period before harvesting crops like tomatoes, berries, and leafy greens. If you apply a foliar spray close to harvest, wash edible produce well before eating, especially leafy greens and berries.

As a practical example: if you spray tomatoes in the morning and pick later that day, rinse the fruit before use. If you apply to lettuce, kale, herbs, or strawberries, wash thoroughly because these crops can hold liquid on the surface.

For general produce handling and washing guidance, visit the FDA guide to selecting and serving produce safely.

Hydrolyzed fish fertilizer and fish emulsion are both fish-based fertilizers, but they are processed differently. Hydrolyzed fish fertilizer is commonly associated with a lower-heat process that helps retain more natural fish components, including oils and proteins. Fish emulsion is often processed with more heat, which can change the final nutrient profile.

For gardeners, this matters because hydrolyzed fish fertilizer is often used as a more complete natural feeding option for soil, roots, and foliar applications. It is especially popular for vegetables, transplants, flowers, and general plant health.

For more background on organic soil fertility, see eOrganic’s organic soil fertility resources.

A gallon of Neptune’s Harvest liquid fertilizer can cover approximately 8,000 square feet, and a quart can cover approximately 2,000 square feet. A practical schedule is once per month during the active growing season.

If using a Hudson hose-end sprayer, one quart in the sprayer can cover about 2,000 square feet. Set the dial around the 4 oz setting, walk backward in a fanning motion, and aim to empty the sprayer over the target area.

Crab & Lobster Shell can also be used as a natural soil amendment for lawns. It can support soil health and is commonly used by gardeners looking to improve poor soil conditions.

For university lawn care guidance, see University of Minnesota Extension lawn fertilizing recommendations.

A common application rate is 10 pounds per 1,000 square feet. Apply at least twice a year, usually in spring and fall. For very poor soil, it can be applied as often as once per month when needed.

Crab & Lobster Shell is often used as a dry soil amendment for gardens, lawns, and growing beds. Work it into the soil when possible, or apply around established areas and water in.

For general soil amendment education, see Oregon State University Extension soil and compost resources.

A common Kelp Meal application rate is 10 pounds per 1,000 square feet. Apply at least twice per year, typically spring and fall. For poor soil, gardeners may apply it more often as part of a broader soil-building program.

Kelp Meal is a dry seaweed amendment often used to support plant vigor and soil biology. It can be mixed into garden beds before planting or used around established plants according to your growing plan.

For research-based seaweed and plant growth context, see Oregon State Extension’s vegetable gardening guidance.

Before transplanting, presoak the planting hole with 1 oz of Neptune’s Harvest per gallon of water. Pour the diluted fertilizer directly into the hole, then place the transplant before the liquid fully drains away.

This helps bring nutrients into the root zone and surrounding soil right when the plant is adjusting to its new location. After planting, water as needed and avoid letting the plant dry out during the establishment period.

Foliar feeding can begin after planting using the same 1 oz per gallon dilution rate. Weekly feeding may be used, but many gardens do well with feeding every 2 to 3 weeks depending on crop, soil, and season.

For transplanting fundamentals, see Penn State Extension on hardening transplants.

Yes, Neptune’s Harvest liquid products can be run through drip systems, but they must be mixed and managed properly. Shake or mix the product well before adding it to your system.

Do not leave diluted fertilizer sitting in the system for more than about 2 hours. After feeding, flush the lines with clear water for about 5 minutes. This helps reduce the chance of fish oils drying inside the lines and causing clogs later.

A common area coverage guideline is about 1 quart per 2,000 square feet. The delivered water-to-fertilizer ratio is often around 1:100 or 1:128, which is about 1 oz per gallon of water.

For fertigation basics, see University of Florida IFAS fertigation guidance.

Tomato & Veg Fertilizer is a strong choice during the early growth stage when you want plants to build leaves, stems, and overall size. For vegetables and berries, the goal is often to build a healthy plant first, then encourage flowering and fruiting later.

A common program is to use Tomato & Veg during the first few weeks, then switch to Rose & Flowering when flowering begins. For example, use Tomato & Veg on tomato plants while they are building structure, then switch once flower clusters begin to develop.

For tomato growing basics, see University of Minnesota Extension on growing tomatoes.

Rose & Flowering Fertilizer is commonly used when plants begin shifting from leafy growth into buds, blooms, flowers, fruits, or vegetables. Tomato & Veg supports more leafy growth, while Rose & Flowering is used to encourage the flowering stage.

For many flowering plants, vegetables, and berries, a simple program is: start with Tomato & Veg early in the season, then switch to Rose & Flowering when flowering begins.

For example, a pepper plant may benefit from early leafy growth first, then a bloom-focused feeding once buds begin forming.

For general flower gardening education, see University of Minnesota Extension flower resources.

All liquid fertilizers should be mixed well before dilution. A 5-gallon pail can be heavy, so instead of lifting or shaking it, place it on a soft surface like grass and carefully roll or flip it to help remix the contents.

If rolling the pail is still difficult, use a clean object, such as an old broom handle, to stir the product. Always make sure the lid is securely fastened before rolling, and use clean tools to avoid contaminating the remaining fertilizer.

Locate the spigot on the top of the pail and remove the white cap. You should see a pull tab. Pull firmly on the collar to pop the spout out. After dispensing the amount you need, collapse the spout if desired and secure the cap tightly.

Work on a stable surface and keep a towel or rinse water nearby in case of drips. Natural fish fertilizer is effective, but nobody wants it spilled in the wrong place!

For spills on rugs, garages, or car interiors, customers have reported good results with odor and stain helpers such as enzyme cleaners, baking soda, Febreze, diluted hydrogen peroxide, or diluted bleach.

Always test any cleaner on a small hidden area first. Never mix bleach with ammonia or other cleaning chemicals. For bleach use, follow label directions carefully and use ventilation.

For general disinfectant safety, see the CDC guidance on cleaning with bleach.

Neptune’s Harvest products are made from marine-based ingredients, so anyone with a seafood or shellfish allergy should use extra caution. Avoid direct skin contact, avoid breathing mist or dust, wear gloves, and consider using a mask when handling dry amendments.

Once fertilizer is applied correctly to plants and produce is washed before eating, many customers are comfortable using these products. But allergies are personal and can be serious. When in doubt, ask your healthcare provider before handling fish, crab, lobster, or seaweed-based products.

For food allergy information, visit FARE’s shellfish allergy resource.

If a pet consumes a small amount of Neptune’s Harvest fertilizer, it may not be an emergency, since the product is fish-based. However, pets can react differently depending on size, amount consumed, health conditions, and product type.

Remove access to the product, offer water, and monitor your pet closely. If your pet shows vomiting, diarrhea, lethargy, distress, or unusual behavior, contact your veterinarian or an animal poison control resource right away.

For emergency pet poison information, visit the ASPCA Animal Poison Control Center.

Some Neptune’s Harvest products may be listed for organic use, depending on the specific product. Always check the product label and the current OMRI listing status before making organic production claims.

OMRI reviews input products for use in organic production under organic standards. This is especially important for farmers, certified organic growers, and retailers who need accurate product documentation.

You can search current listings directly on the OMRI Lists website.

Yes, fish fertilizer can be used on many houseplants, but use a light dilution and avoid overfeeding. Indoor plants grow more slowly than outdoor vegetable gardens, so they usually need less fertilizer.

A good starting point is a weaker dilution than you would use outdoors, applied during active growth. Because fish fertilizer has a natural odor, apply carefully, avoid spills, and consider feeding houseplants outdoors or in a ventilated area when possible.

For houseplant care basics, see University of Minnesota Extension houseplant care guidance.

Seaweed plant food is commonly used as a gentle plant support product for gardens, transplants, flowers, vegetables, lawns, and container plants. Gardeners often use seaweed-based products when plants are under stress or when they want to support root and shoot development.

Seaweed can be used by itself or as part of a complete feeding program with fish fertilizer. For example, Fish & Seaweed Blend gives growers a convenient way to apply both ingredients together.

For a broader plant nutrition overview, see University of Minnesota Extension on plant nutrients and soil.

Wholesale customers should use the Wholesale Order Request form. This form is a request form, not a direct checkout system. That means your order details are submitted to the team for review and follow-up.

If you are applying for wholesale access for the first time, start with the Wholesale Program page. Once approved, use the same business email when submitting order requests so the team can match your request to your account.

Many customers use a hose-end sprayer, such as a Hudson Chameleon Hose End Sprayer, for lawns, gardens, and larger application areas. For mixing into irrigation systems, growers may also use siphon mixers or other injection equipment.

Because fish-based fertilizers contain natural materials and oils, always shake the product well and rinse equipment after use. Cleaning matters. It protects the equipment and prevents leftover fertilizer from drying inside parts and lines.

For tomatoes, many gardeners use a two-stage approach. Start with Tomato & Veg Fertilizer while the plant is building roots, stems, and leaves. When flowering begins, switch to Rose & Flowering Fertilizer to support blooming and fruit development.

Fish & Seaweed Blend is also a strong all-around option for tomatoes because it combines fish fertilizer with seaweed plant food. For heavy-feeding plants like tomatoes, consistent watering, good soil, sunlight, and feeding schedule all work together.

For tomato growing guidance, see University of Minnesota Extension on tomatoes.