Skip to main content

(360) 800-5535 · Mon–Fri 9am–5pm PST

Login
0 Cart { % include 'bold-options-hybrid-cart-item-count' % }
0
Financing Available Starting at 0% interest Login
Mon-Fri 9am-5pm PST
(360) 800-5535 info@trimleaf.com

Send Us a Message

Search

Two bottles of VIVOSUN Nutrients: Base A (4-0-1) and Base B (1-4-2).
Two VIVOSUN NUTRIENTS white jugs, one labeled "BASE B 1-4-2" and the other "BASE A 4-0-1".
VIVOSUN Base A (4-0-1) and Base B (1-4-2) nutrient jugs with plant imagery.
Two bottles of Yivosun nutrients Base A & B, 8oz each, with plant imagery and specifications.
Two gallons of YIIVOSUN nutrients, Base A (4-0-1) & Base B (1-4-2), with specifications listed.
VIVOSUN Base A & Base B nutrient jugs, specifications, and Made in USA label.
Vivosun Base A & B nutrient bottles watering a plant with oranges nearby, highlighting root growth, blooming, yield potential, and trusted gardening solutions.
Strawberry and rose plants before and after nutrient treatment.
Four growing mediums: potting soil, hydroponics, aquaponics, and coco coir, featuring plants and supplies.
Strawberry plant in hands, with nutrient bubbles (N, P, K, Ca, Mg) and bottles of Base A and Base B.
Close up of potted citrus tree with oranges, hand planting. Bottle of "BASE A" & "BASE B" nutrients nearby.
VIVOSUN nutrient feed chart for plant growth stages: seedling, vegetative, early & late flowering. Includes Base A, B, NutriBoost, Bloom Juice, Cal+Mag+Iron.
Two bottles of VIVOSUN Nutrients: Base A (4-0-1) and Base B (1-4-2).
Two VIVOSUN NUTRIENTS white jugs, one labeled
VIVOSUN Base A (4-0-1) and Base B (1-4-2) nutrient jugs with plant imagery.
Two bottles of Yivosun nutrients Base A & B, 8oz each, with plant imagery and specifications.
Two gallons of YIIVOSUN nutrients, Base A (4-0-1) & Base B (1-4-2), with specifications listed.
VIVOSUN Base A & Base B nutrient jugs, specifications, and Made in USA label.
Vivosun Base A & B nutrient bottles watering a plant with oranges nearby, highlighting root growth, blooming, yield potential, and trusted gardening solutions.
Strawberry and rose plants before and after nutrient treatment.
Four growing mediums: potting soil, hydroponics, aquaponics, and coco coir, featuring plants and supplies.
Strawberry plant in hands, with nutrient bubbles (N, P, K, Ca, Mg) and bottles of Base A and Base B.
Close up of potted citrus tree with oranges, hand planting. Bottle of
VIVOSUN nutrient feed chart for plant growth stages: seedling, vegetative, early & late flowering. Includes Base A, B, NutriBoost, Bloom Juice, Cal+Mag+Iron.

Vivosun Base A & B 2-Part Liquid Nutrient Kit

Official VIVOSUN Dealer Model: WEB-NB-002J
Translation missing: en.product.price.range_html
  • Base A supplies 4 percent nitrate nitrogen and 4.5 percent calcium
  • Base B delivers phosphate, potash, magnesium, and molybdenum
  • Available in 8 oz, 32 oz, and 1 gallon sizes
  • 1-year warranty on consumables.
  • View More Details

Earn 24 points for shopping and get $0.24 off your next order. Join Harvest Club for free.
Questions? Talk to a specialist. Mon–Fri, 9am–5pm PST
(360) 800-5535 Live Chat Available now
Free Shipping On Most Items* To the lower 48
Transparent Pricing Backed w/ price match guarantee
4.8/5 average Top Quality Store on Google
Secure Checkout SSL encrypted payments

Questions? Talk to a specialist.

Mon to Fri, 9am to 5pm PST

Call (360) 800-5535
  • Free Shipping On Most Items*To the lower 48
  • Transparent PricingBacked w/ price match guarantee
  • 4.8/5 Top Quality Store on Google
  • Secure CheckoutSSL encrypted payments

Send Us a Message

Are you looking for a quote?
VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Highlights

  • You are mixing a simple two part feed program because Vivosun Base A and B uses equal amounts from seedling to harvest.
  • You are feeding plants across soil, hydroponics, or coco coir because Vivosun Base A and B is 100 percent water soluble.

  • The label feeding schedule scales from 1 to 3 ml per gallon for seedlings and clones up to 9 to 14 ml per gallon during early flower.
  • Calcium and phosphate react with each other in concentrated form, which is why Vivosun keeps them in separate bottles.

  • Users report that switching to this two-part system removed the guesswork from their feeding schedules.
  • Growers who used to struggle with nutrient balancing say this system made their daily maintenance routine much faster.

Vivosun Base A & B 2-Part Liquid Nutrient Kit

Building a feed program from a shelf full of separate bottles makes it easy to miss a nutrient or overdo another. Vivosun Nutrients Base A & B simplifies the foundation to two bottles, used in equal amounts from seedling to harvest. Base A (4-0-1) supplies nitrate nitrogen and 4.5% calcium. Base B (1-4-2) delivers phosphate, potash, magnesium, and molybdenum. Together they provide the essential macro and micronutrients plants need through vegetative growth and flowering.

Calcium and phosphate can react with each other in concentrated form, which is why Vivosun keeps them in separate bottles. Add Base A to your water first, then Base B, and stir thoroughly. Never mix the two concentrates directly together. The label's feeding schedule scales from 1–3 ml/gal per part for seedlings and clones up to 9–14 ml/gal during early flower, then tapers to 7–10 ml/gal for flowering weeks 5–8.

Vivosun Base A & B is 100% water-soluble and works in soil, hydroponics, and coco coir. It suits vegetables, herbs, flowers, ornamentals, and other plants, and is designed to be used every time you water. If plants show signs of stress, or you're growing in very bright, hot, or dry conditions, reduce nutrient strength. The bundle is available in 8 oz, 32 oz (1 quart), and 1 gallon sizes, with one bottle of each part.

Features

Vivosun Nutrients Base A and Base B two-part liquid base nutrient bundle
Vivosun Base A 4-0-1 and Base B 1-4-2 nutrients for vegetative and flowering stages
Vivosun Base A and B nutrient feeding schedule for soil, hydroponics and coco
Vivosun two-part base nutrients in 8 oz, 32 oz and 1 gallon sizes
🧪
Complete 2-Part System

Two bottles cover essential macro and micronutrients from seedling to harvest.

🅰️
Base A 4-0-1 + Calcium

4% nitrate nitrogen, 1% soluble potash, and 4.5% calcium.

🅱️
Base B 1-4-2 + Magnesium

4% phosphate, 2% potash, 1% magnesium, and trace molybdenum.

⚖️
Equal-Dose Feeding

Use the same amount of A and B every watering, with no complicated ratios.

📅
Stage-by-Stage Schedule

Clear ml/gal rates from seedling and clone through late flowering.

🔄
For All Mediums

100% water-soluble for soil, hydroponics, and coco coir.

What's Included

  • Vivosun Nutrients Base A (4-0-1)
  • Vivosun Nutrients Base B (1-4-2)

Both bottles match the selected size: 8 oz, 32 oz, or 1 gallon.

Specifications

Specification Value
Base A NPK 4-0-1
Base A Guaranteed Analysis Total Nitrogen 4.0% (4.0% Nitrate Nitrogen); Soluble Potash (K₂O) 1.0%; Calcium (Ca) 4.5%
Base A Derived From Calcium Nitrate, Potassium Nitrate, Magnesium Nitrate
Base B NPK 1-4-2
Base B Guaranteed Analysis Total Nitrogen 1.0% (1.0% Nitrate Nitrogen); Available Phosphate (P₂O₅) 4.0%; Soluble Potash (K₂O) 2.0%; Magnesium (Mg) 1.0%; Molybdenum (Mo) 0.001%
Base B Derived From Monopotassium Phosphate, Magnesium Nitrate, Sodium Molybdate
Form Liquid concentrate, 100% water-soluble
Available Sizes 8 oz, 32 oz (1 quart), 1 gallon (per bottle)
Net Weight (32 oz) 2.58 lb (1.17 kg) per bottle
Growth Stages Seedling/clone, vegetative, flowering
Compatible Mediums Soil, hydroponics, coco coir
Storage Cool, dark place; keep out of reach of children

Feeding Schedule

Stage Base A Base B
Seedling/Clone Week 1–2 1–3 ml/gal 1–3 ml/gal
Vegetative Week 1–4 5–9 ml/gal 5–9 ml/gal
Flowering Week 1–4 9–14 ml/gal 9–14 ml/gal
Flowering Week 5–8 7–10 ml/gal 7–10 ml/gal

Frequently Asked Questions

How do I mix Base A and Base B? +

Shake both bottles well. Add Base A to your water first, then add an equal amount of Base B, and stir the mixture thoroughly. Never combine the two concentrates directly. After mixing, ensure your solution is at the correct acidity using a pH adjustment kit.

Why are Base A and Base B in separate bottles? +

Base A carries calcium, while Base B carries phosphate and magnesium. Keeping them separate until they're diluted in water prevents these nutrients from reacting in concentrated form, so every element stays available to your plants.

How much should I use at each stage? +

Use equal amounts of each part. Start at 1–3 ml/gal for seedlings and clones (weeks 1–2), then 5–9 ml/gal for vegetative weeks 1–4. Increase to 9–14 ml/gal for flowering weeks 1–4, and taper to 7–10 ml/gal for flowering weeks 5–8.

How often should I feed with Base A & B? +

For best results, use Base A & B every time you water. To maintain the perfect environment, monitor your nutrient solution with a digital pH meter as it forms your base nutrient program, covering plants' core nutritional needs from seedling through the end of flowering.

When should I reduce nutrient strength? +

Lower the dose if plants show signs of stress, or if you're growing in very bright, hot, or dry environments. Plants in these conditions can take up nutrients differently, so a lighter feed helps prevent burn.

Which growing mediums is it compatible with? +

Vivosun Base A & B can be used in all mediums, including soil, hydroponics, and coco coir. It's 100% water-soluble and mixes cleanly into reservoirs and watering cans.

Can I use Base A & B with other additives? +

Yes. Base A & B is designed as your foundation, and supplements like Vivosun Cal+Mag+Iron or Bloom Juice can be layered on top as needed. For extra plant strength, you can also add Vivosun StemX Liquid Silica.

How should I store the nutrients? +

Store both bottles in a cool, dark place and keep them out of reach of children. Shake well before each use, since ingredients can settle over time.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
Years of Specialist Knowledge
4.8★
2018+ Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock

You may also like