True Organic Prilled Sulfur | 5lb - Resealable Bag - Lowers Soil pH - Covers up to 1,333sq ft - OMRI Listed - (Case of 6)

99.9% Elemental Sulfur Amendment for Lowering Soil pH, 5lb

Soil that runs too alkaline locks up iron, manganese, and other micronutrients even when a fertilizer program supplies plenty of them, since plants can't take up nutrients they can't chemically access at that pH. True Organic Prilled Sulfur addresses the pH itself, working 99.9% elemental sulfur into the soil ahead of planting so the pH has time to drop before roots need to draw on it.

This 5lb resealable bag covers up to 1,333sq ft, a size built for treating a full garden plot or bed area rather than a single container, applied one to two weeks before planting and feeding.

Key Features & Benefits

• 99.9% elemental sulfur — a concentrated, high-purity soil pH-lowering material.
• Improves micronutrient availability — unlocks nutrients that stay chemically locked up in high-pH soil.
• Pre-planting application — applied one to two weeks ahead of planting and feeding for pH to take effect.
• Wide coverage per bag — this 5lb bag treats up to 1,333sq ft.

Who Should Use Prilled Sulfur

This fits gardeners preparing soil ahead of planting acid-loving crops, or anyone whose soil test shows a pH too high for their plants to access nutrients well.

About True Organic

True Organic Products packages its Prilled Sulfur as a high-purity, 99.9% elemental sulfur soil amendment, a more concentrated pH-correction tool than the lower-percentage sulfur blended into its Azalea and Berry fertilizers.

Frequently Asked Questions

Why lower soil pH before planting instead of fertilizing more?

High soil pH can chemically lock up iron, manganese, and other micronutrients so plants can't absorb them no matter how much fertilizer is applied. Correcting the pH with sulfur addresses that root cause rather than adding more nutrients on top of an access problem.

When should this sulfur be applied relative to planting?

Apply it one to two weeks before planting and feeding, giving the sulfur time to start lowering soil pH before roots are actively growing in that soil. Applying it at the same time as planting doesn't give the pH shift enough lead time.

How is this different from the sulfur in True Organic's Azalea or Berry fertilizers?

This is a 99.9% elemental sulfur amendment used specifically to adjust soil pH, while the Azalea and Berry formulas blend a smaller percentage of sulfur into a broader fertilizer with other nutrients. Use this product when the primary goal is correcting pH rather than feeding the plant.

Is this product OMRI Listed?

Yes, it's OMRI Listed and approved for certified organic soil preparation. It ships in a resealable 5lb bag.

How much area does one bag treat?

This 5lb bag covers up to 1,333sq ft, enough for a full garden plot or bed area. Larger areas need proportionally more bags.