SKU: 6424768382
best fertilizer for onions plants

best fertilizer for onions plants Ammonium Sulfate Fertilizer 10 Pounds

Sale price$21.55 Regular price$23.94
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Description

best fertilizer for onions plants Ammonium Sulfate Fertilizer 10 PoundsOur Ammonium Sulfate fertilizer is the perfect blend for growing onions, garlic, elephant garlic, shallot and leeks. These crops are heavy feeders, meaning they require significant amounts of nutrients (nitrogen and sulfur) and water throughout their initial growth phase. Allium species (onions, garlic, elephant garlic, shallots and leeks) generally have two growing phases throughout the life of the plant. The first phase is called the "vegetative

Our Ammonium Sulfate fertilizer is the perfect blend for growing onions, garlic, elephant garlic, shallot and leeks. These crops are heavy-feeders, meaning they require significant amounts of nutrients (nitrogen and sulfur) and water throughout their initial growth phase.

Allium species (onions, garlic, elephant garlic, shallots and leeks) generally have two growing phases throughout the life of the plant. The first phase is called the "vegetative phase." During the vegetative phase, plants are focused on maximizing foliage or green growth. This foliage will then be used to synthesize sugars and form the bulb that will be harvested in the second stage. As such, the second stage is appropriately named the "bulbing phase."

The more foliage that is generated during the vegetative stage, the larger the bulb that will be produced during the bulbing stage. In onions and shallots, each leaf represents a ring on the eventual bulb. Therefore it is important to provide the nitrogen and sulfur needed to get as much leaf growth as possible during the vegetative stage. This will result in large bulbs and bountiful harvests.

Ammonium Sulfate provides a fast-acting source of nitrogen and sulfur. Used as a side-dress, sprinkle the fertilizer to the side of the plants without getting it on the plant leaves. 

Ammonium Sulfate Use Recommendations

Begin applications three weeks after transplanting. Repeat every 3-4 weeks. Side-dress 1 cup per 20 linear feet of row. When side-dressing, always water immediately after feeding.

Guaranteed Analysis

  • Total Nitrogen (N) - 21.0%
    • Ammoniacal Nitrogen - 21.0%
  • Sulfur (S) - 24.0%
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SKU: 6424768382

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Renee M. Willimas
Grantham, US
★★★★★ 5
Cute denim, nice leather ties, awesome price and fits as they should. Would buy again.
Size: 8.5 Wide, Color: Linen Navy
ordered 8 1/2 W since toe box is fairly narrow. Fits perfectly. Cute with jeans, leggings and shorts. Decent arch support, nice soles and SUPER value for the price (These are 80 at shoe stores locally) Would buy again.
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Reviewed in the United States on August 29, 2025
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Skribbles76
Dallas, US
★★★★★ 4
Comfy and cute.
I was looking for a Converse alternative for a multitude of reasons. These were perfect. I love the slip-on style. The leather laces stay in place much better than the Converse cotton laces and there is way more sole support, which is a huge plus. I purchased these in black about a year ago and then went for the camo pair. As for the black pair, I wore them regularly for a year. After that time, the shoe didn't feel as comfortable anymore, and the fabric outer around the ankle began to fray, and the white outer trim was beginning to detach from the bottom sole. With that, I was pleased with how long they lasted. As for the camo pair, I anticipate the same quality and comfort. While super cute, the only draw back is the mismatched pattern. If you look at the pics, the one shoe has more gold embellishment at the toe area and the other one doesn't. This bothers me a bit as I would have liked it to match. Otherwise, I'm happy with both purchases so far and will continue to buy them in the future.
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Reviewed in the United States on June 27, 2023
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Doris Stanley
Omaha, US
★★★★★ 5
Love these
Size: 7, Color: Camo Olive
Love these shoes. Great value and comfortable
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Reviewed in the United States on May 2, 2026
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Texas 12
Charlottesville, US
★★★★★ 5
Long lasting. Sperry is quality.
Last a long time and still look good.
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Reviewed in the United States on January 20, 2026
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Bea
Massapequa, US
★★★★★ 5
Best buy
I love these it's been a while since I bought them and still look like brand new.
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Reviewed in the United States on February 12, 2026

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