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Safer® Brand Garden Fungicide RTU 32oz

Model #: 5450-6

5 reviews
0 5 3.4

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  • Prevents black spot, rust and powdery mildew.
  • Comes with one 32 fl oz ready-to-use spray.
  • Use on roses, flowers, strawberries & more.
  • OMRI Listed® and compliant for use in organic gardening.
  • Can be used up until the day before harvest.

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Safer® Brand Garden Fungicide – 32oz Ready to Use Spray – How It Works Safer® Brand Garden Fungicide controls and prevents fungal diseases in plants, including powdery mildew, black spot, leaf spot and rust. Once sprayed, Garden Fungicide creates an environment that is not optimal for these diseases to grow and spread, therefore stopping the attack on plants. Protect your flowers, foliage, ornamentals, vegetables and fruit up until the day before harvest.

This convenient ready-to-use spray is OMRI Listed® and compliant for use in organic gardening, allowing you a to work on your organic garden without worry about these diseases and fungi.

Garden Fungicide Bottle
Best used for:
Organic Gardening
Organic Gardening
Kills Fungal Diseases
Killing Fungal Diseases
Protect Flowers and Edibles
Protecting Flowers & Edibles
Use up to day before harvest
Use Up to Day Before Harvest
Ready to use Spray
Ready-to-use Spray
Garden Fungicide RTU Bottle

Control Devastating Plant Disease Safer® Brand Garden Fungicide is specially formulated with sulfur to stop the spread of fungal diseases that can devastate your plants. Plant diseases, including powdery mildew, black spot, rust and leaf spot, can quickly spread to nearby plants, wiping out an entire crop.

Apply Garden Fungicide, which uses sulfur, at the first sign of powdery mildew, black spot and rust to keep your plants free of disease so they can continue to grow healthy and strong.

Target These Plant Problems Safer® Brand Garden Fungicide will control:
  • Powdery Mildew
  • Rust
  • Black Spot
  • Leaf Spot
Powdery Mildew
Plant Rust
Rose Leaves
Leaf Spot
white rose
Protect Plants from Fungal Disease Fungal diseases can take over and destroy plants rapidly. Use Safer® Brand Garden Fungicide to protect your roses and flowers from unsightly black spot. Control leaf spot and rust on beautiful foliage plants and ornamentals. Keep vegetables and fruit, such as strawberries, beans and peas, free from powdery mildew so they can continue to grow vibrant and delicious.
How To Use Garden Fungicide Be sure to shake the bottle well before using to ensure proper mixture and distribution before spraying. Apply Garden Fungicide at the first sign of infection. Spray plants thoroughly to saturate upper and lower surfaces of the plant foliage. Apply every 7-10 days, after rain, or as needed to control powdery mildew, leaf spot, black spot and rust. For strawberries, apply at 3 week intervals only. Safer® Brand Garden Fungicide can be used up to the day before harvest, so you can keep damaging fungi at bay until the very end!
How to Use Garden Fungicide
Ready to Use Solution

A Convenient Ready-to-Use Solution When damaging fungi attacks your garden plants, having a solution that’s simple, quick and easy-to-use is the way to go. Safer® Brand Garden Fungicide comes in a convenient ready-to-use solution to make controlling fungal disease easy. Plus, we’ve added a newly designed sprayer head to our bottles for a more consistent spray pattern, so you can target and eliminate fungus.

Compliant for Use in Organic Gardening Growing an organic garden can be an enjoyable and rewarding hobby. Organic gardening methods create a sustainable garden that feeds the soil it grows in, leaving your fruits and vegetables nutritious and delicious.

Safer® Brand Garden Fungicide has been third-party reviewed for use in organic gardening by the Organic Materials Review Institute. It carries the OMRI Listed® seal, which means it has been deemed compliant for use in organic gardening by the USDA’s National Organic Program.

OMRI Listed
Five Stars "This product is very convenient to use. no strong odors and was effective against black spot on my rose bush.” (Review from Anonymous) Read More Reviews »
Safer® Brand Garden Fungicide Product Details Do you want to know more helpful details about Garden Fungicide? Take a closer look at the in-depth specifications for this product. Complete Product Details »
Safer® Brand Garden Fungicide Ready-To-Use Spray
Model # 5450-6
Size 32 fl oz
Active Ingredients Sulfur 0.4%
Eliminates Black spot, leaf spot, rust and powdery mildew
For Use On Flowers, vegetables and fruits
Learn More About Plant Diseases Safer® Brand Garden Fungicide Controls fungal diseases that have the potential to ruin gardens. For black spot, rust, leaf spot and powdery mildew, use Garden Fungicide to help your garden become fungus-free. Check out some of our great resources to learn more about the plant diseases that Garden Fungicide controls.
About SAFER® BRAND Safer® Brand leads the alternative lawn and garden products industry, offering many solutions that are compliant with organic gardening standards. Safer® Brand recognizes this growing demand by consumers and offers a wide variety of products for lawns, gardens, landscapes, flowers, houseplants, insects and more! More About SAFER® BRAND »
Safer® Brand Garden Fungicide Ready-To-Use Spray
Model # 5450-6
Size 32 fl oz
Active Ingredients Sulfur 0.4%
  • Black spot
  • Leaf spot
  • Powdery mildew
  • Rust
For Use On
  • Beans
  • Flowers
  • Foilage Plants
  • Ornamentals
  • Peas
  • Strawberries
Usage Notes
  • Before use, shake well.
  • Do not apply in temperatures over 85 degrees F.
  • Can be used up to the day of harvest.
  • Follow individual plant application instructions.

Disclaimer: Safer® Brand does not endorse any information contained in product reviews. Please follow all label instructions for your specific use.

Most Recent Customer Reviews

Review Rate
Review posted on
July 13, 2018
Bottle stops spraying at half full By CB

I used to love this product but Safer has a new bottle/sprayer design and each one would not spray once the bottle was down to half full. Will not buy again due to this defect. Waste of money.

Response From Safer Brand®
Jennifer : Consumer Relations Representative


We are very sorry to hear of this experience! When spraying it is important to keep the bottle upright so the hose can reach the liquid inside the bottle. It is also important to shake the product vigorously before use.

This feedback is appreciated and has been shared with our Product Managers! Your satisfaction with your purchase is important to us and we would like to make this right.
Our products are covered by a 30 day return policy and a one year warranty with a copy of the purchase receipt. Please feel free to contact our Consumer Relations Team at 1-855-7-ORGANIC (1-855-767-4264) for further assistance.

Review Rate
Review posted on
May 26, 2018
Defective Sprayer By Zorch

Sprayer (and streamer) don't work when bottle is half used. Frustrating!

Response From Safer Brand®
Jennifer : Consumer Relations Representative

We are very sorry to hear of this unusual experience and appreciate the time taken to provide this feedback! In order to further assist, we would like to learn more about this experience. Please feel free to contact us directly. Our Consumer Relations Team can be reached at 1-855-7-ORGANIC (1-855-767-4264). We are happy to help!

Review Rate
Review posted on
August 26, 2017


Review Rate
Review posted on
August 16, 2017
great item By tk

it works great

Review Rate
Review posted on
May 18, 2017
Good product, works great, not for newly rooted plants By Cynthia

Product works great! Nothing to mix or measure, easy and simple use. Very efficient. Would not recommend for newly rooted roses or for roses establishing new growth. Otherwise it works great and will keep black spot and fungus under control.

Read All Reviews (5) Write a Review
Q.I am using this product just as a precaution on my apple trees, since they have just undergone a heavy agricultural pruning. Because it is only precautionary, how often should I spray in the winter? And how often next Spring?

We recommend spraying plants at the first sign of infection. This product is not intended for use as a preventative.

Q.The container is 32 Oz. But what is the chemical ratio? I don't want to kill the grass or shrubs ...

The active ingredient in this product is 0.4% sulphur.

Q.Just purchased a bottle of spray mildew, black spot etc but there aren’t any instructions?

Instructions for this product can be found directly on our product page,

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All About

All About...Plant Diseases

Powdery Mildew

Numerous strains of fungi are commonly referred to as Powdery Mildew. Since this disease removes essential nutrients from the plant, leaves may become yellow, stunted or drop off prematurely.

Black Spot

Roses, especially hybrid tea roses, are highly susceptible to this infectious fungal disease. Black spots, as the name implies, will appear on the leaves, followed by a yellowing surrounding the spots.

Learn More:

More about Plant Diseases»


Expert Tips for a Beautiful Garden!

Gardening can be a very rewarding and healthy undertaking. By using products that comply with organic gardening standards and methods, plants grow better, insect pests can be controlled, plant diseases can be eliminated, and lush harvests can be enjoyed!

Learn More:

Safer® Brand Garden Fungicide, Spray


Controls Powdery Mildew, Black Spot, and Rust on flowers, fruit, and vegetables

Directions for Use:


SHAKE WELL before use.

For coverage, see individual applications. Spray plants thoroughly to wet the upper and lower surfaces of foliage. Repeat as recommended.


SHAKE WELL before use.

To control powdery mildew, leaf spot, and rust on FLOWERS, FOLIAGE PLANTS AND ORNAMENTALS, spray at 7 to 10 day intervals or as needed.

To control powdery mildew, black spot and rust on ROSES, spray at 7 to 10 day intervals following rain, or as needed. Be sure to treat new growth and buds. Avoid spraying when plants are in full sun or temperature exceeds 85 degrees F.

To control powdery mildew on BEANS AND PEAS, spray at first sign of disease and repeat at 7day intervals as necessary. May be used up to day before harvest.

To control powdery mildew on STRAWBERRIES, spray at first sign of disease infestation. Repeat at 3 week intervals. Do not use on strawberries that will be used for canning. May be used up to the day before harvest.

Use Cautions:

  • Some plants are susceptible to injury from sulfur under certain climatic conditions.
  • Do not apply on Boston fern, spinach, apricot, filberts, walnuts, and viburnum.
  • Do not apply when temperature exceeds 85 degrees F.
  • Do not apply for at least 4 weeks following application of an oil spray.
  • Avoid contact with plants until spray has dried.

Storage and Disposal:

Storage: Store only in original container in a cool, dry area inaccessible to children and pets. Protect from freezing and heat. Keep container tightly closed to prevent evaporation.

Disposal: Empty Non-refillable container. Do not reuse or refill this container. Place in trash or offer for recycling if available. If Partly Filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.


Plant Disease Control - FAQs


Q: How do I know if my plant is being attacked by an insect or a disease?

A: If it’s an insect, the plant may have holes in its leaves. Turn the leaves over and you may see theinsects themselves clustered on the underside of the leaves. You may also see and feel a stickysubstance if it’s an insect because the insect will leave a secretion on the plant.


Q: My pumpkins' leaves have white powder on them. What is it? How do I getrid of it?

A: It sounds like you are talking about powdery mildew. There are fungicides,such as Safer® Brand Garden Fungicide, on the market that can workeffectively in controlling powdery mildew. More»


Q: How do I get rid of anthracnose on my dogwood tree?

A: The best way to control anthracnose includes several measures. Starting with varieties that areresistant to disease, especially anthracnose. Be sure to prune the tree during the dormant seasonby removing dead branches. More»

More FAQs»

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