Copper Sulfate Crystals

Seed Ranch


Copper Sulfate Crystals 

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

 Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month. 

AK

Customer Reviews

Thank you for submitting your review

Based on 94 reviews Average Rating 4.8 stars out of 5
Filter 85 Reviews with 5 star rating
Filter 5 Reviews with 4 star rating
Filter 2 Reviews with 3 star rating
Filter 2 Reviews with 2 star rating
Filter 0 Review with 1 star rating
  • V
    Veronica Siergey V. S. Veronica S.
    10-11-2025

    Great packaking

    Glad you carry this item

  • T
    Trevor Chittenden T. C. Trevor C.
    28-10-2025

    Copper Sulfate

    Arrived on time. Applied to my pond and it is working great!!

  • E
    Eddie Elliott E. E. Eddie E.
    06-10-2025

    Great product, great price fast shipping..

    Copper Sulfate Crystals

  • F
    Fred Novack F. N. Fred N.
    05-10-2025

    Copper sulfate

    Glad it was less expensive then 2# containers.

  • k
    kuan wong K. W. kuan w.
    15-09-2025

    Copper Sulfate Crystals

    I give A+++

  • J
    John Ramsey J. R. John R.
    07-09-2025

    Tennis Pros!

    Tennis professionals who care for Clay courts should rejoice! We currently use a liquid form of copper sulfate. I was having issues with it washing away before it had a chance to kill the algae ony courts. 10 lbs treated every square foot of my 4 courts. This is wonderful. The rain activated the copper sulfate crystals and they didn't wash away which allowed them to kill the algae. I'll be communicating this to all professionals who care for Clay courts!

  • R
    Ronald Dershem R. D. Ronald D.
    04-09-2025

    50 lbs copper sulfate

    Order arrived as promised.

  • D
    Damyan Peretskyy D. P. Damyan P.
    27-08-2025

    👍👍

    👍

  • D
    Daniel Levitan D. L. Daniel L.
    18-08-2025

    A pleasure with whom do do business.

    Excellent product and service, as always.

  • K
    Kevin Allen K. A. Kevin A.
    18-08-2025

    Great product and price

    Happy with the product, price and delivery time.

  • D
    David E Moore D. E. M. David E. M.
    14-08-2025

    Excellent. Worked great to clean the algae in my large water tanks that sat to long with water in them.

    Copper Sulfate Crystals

  • B
    Brian Malplei B. M. Brian M.
    11-08-2025

    Be sure to check your order

    Be sure to check your order because only half of the products showed up that i purchased. They did ship the remaining product after i sent a email but i could have very easily been out the money had I I caught the mistake.

  • C
    Carolyn Muller C. M. Carolyn M.
    08-08-2025

    Great

    Thank you so much!

  • REUSSER . R. R.
    06-08-2025

    Good product /price

    Reordered copper sulphate . Arrived timely and packed well. Good product and price.

Ask your Question about this product




Related Items


Description

Copper Sulfate Crystals 

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

 Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month. 

STATES NOT REGISTERED

AK

Reviews

{% render 'proviews_widget' %}