A green bottle labeled ARBER Bio Protectant for organic gardening, with text stating it boosts plant defenses, strengthens immunity, improves plant health, and lists its ingredients. A green bottle labeled ARBER Bio Protectant with instructions for plant use, certification logos, and distribution details on a white label. The bottle has a wide base and a narrow neck with a cap. A green ARBER Bio Protectant bottle sits on a tree stump outdoors, surrounded by grass and plants in a sunlit garden setting. A person pours liquid from a green ARBER bottle into a small metal cup, with a field of blooming purple flowers in the background. A green bottle labeled ARBER sits on an upside-down clay pot, surrounded by a fennel bulb, gardening shears, stacked clay pots, spilled soil, and a green watering can against a light background.
A green bottle labeled ARBER Bio Protectant for organic gardening, with text stating it boosts plant defenses, strengthens immunity, improves plant health, and lists its ingredients.

Arber Bio Protectant Concentrate, 3-in-1 Fungicide, Immunity Booster, and Nutrient

16 oz

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Certified organic gardening product for sustainable outdoor gardening.
  • Protects plants from a variety of diseases including powdery mildew and black spot.
  • Suitable for use on vegetables, fruits, flowers, and ornamental trees and shrubs.
Purchase options

Bio Protectant Concentrate, 3-in-1 Fungicide, Immunity Booster, and Nutrient $19.99

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

The Bio Protectant is Arber's most versatile and powerful product. Stimulate growth, increase yield, build immunity, and safeguard your outdoor gardens against major fungicidal diseases. This formidable biological plant extract will boost inherent defenses so that your plants can grow to new heights and protect themselves from challenging diseases. For greener leaves, bigger blooms, stronger roots, and improved soil health.

Active Ingredients:
Extract of Reynoutria Sachalinensis.........5%
Other Ingredients………………………….95%
Total…………….………………………….100%

For optimal results use in your regular watering cycle. Also ideal for: transplants, potting mixes, as a rooting compound, in hydroponics.

MIX
Shake Bottle + Mix .25oz. Arber Concentrate with 32oz. of water or 1 oz of it for every 1 Gallon of water

APPLY
Apply directly to soil or apply to leaves for plant foliar diseases
Apply every 10-14 days for wellness and every 7-10 days for disease control
Do not allow mixture to sit for prolonged periods of time (Mix a new batch for every use)

Grove Values

Gardening tools, tomatoes, soil, two sprouting plants, a gardening fork, cork plant markers, Rosy Soil bag, ARBER plant food, ARBER insecticide, and Root Cut Flower Food on a green background.
3,000+ BANNED INGREDIENTS

For a healthier garden and planet.

From sprays to soil supplements, every product is vetted to meet strict ingredient and material standards —  minimizing concerning chemicals and helping reduce outdoor plastic pollution.

A small potted cactus sits next to a red and yellow bag of Rosy Soil Cactus & Succulent Mix, displayed on a light green circular background.

No unwanted additives

Made without synthetic pesticides, phosphates, or petrochemical surfactants

A green bag of Spade + Fork Organic All Purpose Fertilizer sits upright on a light green circular background, with product details and usage suggestions visible on the packaging.

Vetted for materials that matter

Reviewed for ingredient and material choices that align with Grove’s standards

A green tube labeled Murphys Naturals Mosquito Repellent Incense lies open with incense sticks partially out. Another closed tube stands in the background, all on a light green circular background.

Less plastic, fewer microplastics

Reduced-plastic options and tools that limit outdoor plastic and microplastic exposure

A close-up of a human fingertip with colorful microplastic particles on the skin, and images of a plastic bag, bottle, and six-pack ring layered in the corner, highlighting plastic pollution.

Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog