Looking for a soil acidifier gardenia? Have a look at this 2020 guide!

It took days of going through more than a thousand customer reviews and conducting expert researches to narrow down the list. Weve included a comparison table below to give you a quick summary of our top 10 soil acidifier gardenia. Its followed by an in-depth review of each soil acidifier gardenia. Hopefully, once you are done reading this article, you will be well informed about soil acidifier gardenia and be able to select the right soil acidifier gardenia for you without any hesitations.

Best soil acidifier gardenia

Related posts:

Best soil acidifier gardenia reviews

1. Espoma UL30 Organic Soil Acidifier Fertilizer, 30 lb

Feature

Lowers pH to optimum range
All Natural; Approved for organic gardening
Also use for blueberries and hydrangeas

Description

Espoma Organic Soil Acidifier is the most effective soil acidifier available. Containing all natural minerals it corrects the problem of alkaline soil by lowering soil ph. Many gardeners use it specifically to make their Hydrangeas and blueberries bluer. All natural and pelletized, Espoma Soil Acidifier is safer than aluminum sulfate due to potential toxic levels of Aluminum with continued use.

2. Espoma GSUL6 Soil Acidifier, 6-Pound

Feature

This soil acidifier is an all natural and high purity mineral
Can be used both as a plant food and as a soil amendment
Lowers the pH of soils and allows acid loving plants to achieve optimum growth
Long lasting and highly effective
Comes in 6-pound bag

Description

This soil acidifier is an all natural, high purity mineral that can be used both as a plant food to provide the nutrient sulfur and as a soil amendment to correct the problem of alkaline soil. This all natural soil acidifier turns hydrangeas blue. Lowers the pH of soils and allows acid loving plants to achieve optimum growth. Long lasting and highly effective. Safe, nontoxic and safer than aluminum sulfate. Can be used for organic gardening. Comes in 6-pound bag.

3. Jobe's Organics 9364 Fertilizer, 6 lb

Feature

Organic granular for decreasing soils alkalinity; provides acid-loving plants with all natural Sulphur
OMRI listed for organic gardening by usda; certified organic means no synthetic chemicals
Ideal formula for hydrangeas and blueberries; turns hydrangeas from pink to blue; test soil pH before applying
Promotes darker Green growth; no harmful chemicals that could burn the plant
Easy pour 6 pound bag; apply at planting, reapply 2-3 times a Year to maintain desired soil pH

Description

Jobe's Organics Soil Acidifier decreases soil pH. It is specially formulated with all-natural ingredients to provide acid-loving plants with sulfur, a natural ingredient used to correct alkaline soils. This formula is ideal for use with blueberries and hydrangeas. Jobe's Organics Soil Acidifier changes the soils pH turning hydrangeas a beautiful blue. Healthy plants start with healthy soil. Jobes Organics soil amendments will help you create the perfect growing environment for your plants. We recommend doing a soil test before using any soil amendments. Dont miss out on these other Jobes Organics soil amendments: Jobes Organics Garden Lime, Jobes Organics Bone Meal, Jobes Organics Blood Meal, Jobes Organics Sphagnum Peat Moss, Jobes Organics Perlite and Jobes Organics Compost Starter. Jobes OrganicsSoil Acidifier will help your organic garden thrive. Safe for use around children and pets.

4. Bonide PRODUCTS INC 705 037321007050 Aluminum Sulfate

Feature

4 lb. Aluminum Sulfate
This helps to lower soil pH for acid loving plants
Designed for plants like azaleas, camellias, gardenias, hemlock holly, cedar, blueberry, and etc.
Formula turns hydrangeas blue
Works well in all soil types

Description

4 lb. Aluminum Sulfate. This helps to lower soil pH for acid loving plants. Designed for plants like azaleas, camellias, gardenias, hemlock holly, cedar, blueberry, and etc. Formula turns hydrangeas blue. Includes easy to follow chart. Works well in all soil types.

5. 40LBS Sulfur Granular Sulphur Garden Pellets Soil

Feature

Sold on Amazon

Description

Tiger 90CR is a granular degradable sulphur fertilizer that can be used both as a source of plant nutrient sulphur and/or as an amendment for correction of problem alkali soils. This unique, high analysis sulphur fertilizer delivers agronomically and economically, and provides excellent handling characteristics. Guaranteed Analysis (0-0-0-90) 90% Sulphur, 10% Bentonites* *dispersible clay

6. VPG Fertilome MR9SB 1Qt Soil Acidifier

Feature

Designed to help reduce alkalinity in alkaline soils while supplying trace elements vital to acid loving plants such as roses, gardenias, azaleas, holly, rhododendron, magnolias, fruit trees, and vegetables

Description

Designed to help reduce alkalinity in alkaline soils while supplying trace elements vital to acid loving plants such as roses, gardenias, azaleas, holly, rhododendron, magnolias, fruit trees, and vegetables. Mix at rate of 2 tablespoons per gallon of water. Formulation: Contains iron, sulfur, copper, magnesium, and zinc.

7. Ammonium Sulfate (2 lb.) by Pure Organic Ingredients, Eco-Friendly Packaging, Fertilizer & Soil Acidifier, Highest Quality, NO Iron OR Aluminum (Also in 8 oz, 1 lb, 5 lb, 25 lb)

Feature

SAFEST AND MOST EFFECTIVE SOIL ACIDIFIER & FERTILIZER.
IRON & ALUMINUM FREE.
GREENER LEAVES AND BLUER BLUEBERRIES.
HELPS LOWER ALKALINITY OF SOIL & GIVE THE PLANTS GREATER STRENGTH & BRIGHTER COLORS.
MONEY BACK GUARANTEE: We are confident that you'll love our products and stand behind every item with a 100% satisfaction guarantee. If you are not satisfied with your purchase return the product for a full refund.

Description

Pure Organic Ingredients Ammonium Sulfate Soil Acidifier and Fertilizer is the safest and most effective soil acidifier and fertilizer.
It is free of impurities like iron and aluminum or other heavy metals.
The natural minerals help lower alkalinity of soil and give the plants greater strength and brighter colors.
It is especially effective with Hydrangeas and giving blueberries a crisp blue.
At Pure Organic Ingredients we strive to be a proactive, integral, and responsible member of our environment and community. We try to make all our packaging from natural materials like recycled, virgin or dye-free paper. Our Natural Kraft Paper Bags are an Earth-Conscious alternative that present a lesser burden on the environment than our competitor's plastic bags.

100% MONEY BACK GUARANTEE: We are confident that you'll love our products and stand behind every item with a 100% satisfaction guarantee. If you are not satisfied with your purchase, return the product for a full refund.

Made in the USA

8. Southern Ag Pelletized Soil Acidifier - 5LB

Feature

Southern Ag Pelletized Soil Acidifier - 5LB

Description

Southern Ag PELLETIZED SOIL ACIDIFIER (5LBS.) .*#GH45843 3468-T34562FD844

9. 100% PURE Aluminum Sulfate, DRY ALUM CAS# 16828-12-9

Feature

Use it as a Mordant: A mordant is a substance like Aluminum Sulfate, that combines with a dye or stain and thereby fixes it in a material. This will also help the dye from fading or washing out.
Use it as a Flocculant:Flocculation is the process by which fine particulates are caused to clump together into a floc. This can help clean ponds, pools and help with pollution and wastewater treatment centers
Controls and prevents algaeby dramatically decreasing phosphate levels in the water. Phospherous is food for algae and helps them grow and spread. Aluminum Sulfate will help maintain a clear pool or pond that has an algae problem without harming fish.
Helps purify waterto remove impurities by helping them clump together and fall to the bottom of the container. The impurities are removed when the water is filtered and Aluminum Sulfate makes it easier to filter out.
Dry Alum is highly acidic and also used tobalance the pHin the soil for acid loving plants, and can also be used as a garden fertilizer or a pool pH reducer.

Description

100% pure Aluminium Sulfate is soluble in water and is mainly used as a flocculating agent in the purification of drinking water and waste water treatment plants, and also in paper manufacturing. Aluminium sulfate is used as a mordant in dyeing and printing textiles. In dyeing and printing cloth, the gelatinous precipitate helps the dye adhere to the clothing fibers by rendering the pigment insoluble. Aluminium sulfate is also sometimes used to reduce the pH of garden soil. In the construction industry, it is used as waterproofing agent and accelerator in concrete. Another use is a foaming agent in fire fighting foam. It is also used in styptic pencils, and pain relief from stings and bites. You can also prevent algae buildup, clean ponds and pools and help reduce pH in water.

10. VOLUNTARY PURCHASING GROUP Soil Sulfur, 4 lb

Feature

90% Sulphur
Derived from Elemental Sulfur

Description

VPG Hi-Yield, 4 LB, Soil Sulphur, Helps Create Acid Soil Conditions, Is Ideal For Lawns, Acid Loving Ornamentals & Vegetables. This product can be used easily. This product is manufactured in China.

Conclusion

By our suggestions above, we hope that you can found the best soil acidifier gardenia for you. Please don't forget to share your experience by comment in this post. Thank you!