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Boron Fertilizer

Liquid boron fertilizer for flowering and fruit set. Corrects hollow stems, cracked roots, and poor pollination in broccoli, beets, apples, and grapes.

4.6 · 1,600+ reviews on Amazon
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$2.99 flat shipping · FREE over $15

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Works for boron-hungry crops

  • broccoli
  • cauliflower
  • beets
  • celery
  • apples
  • grapes
  • sunflowers
  • alfalfa

Results you can see

Feeds foliage for deeper color and a brighter, more lively look.

Feeds foliage for deeper color and a brighter, more lively look.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Supports healthy, resilient roots that absorb nutrients more effectively.

Supports healthy, resilient roots that absorb nutrients more effectively.

What's inside your bottle — macronutrients, core minerals, micronutrients, and natural kelp

How to use

  1. Mix

    Shake Well and Add 1 tsp per quart (32 oz) of water.

  2. Feed

    Water your plants as normal. Spring & summer: every 1–2 weeks. Fall & winter: every 4 weeks.

  3. Grow

    Watch how your plants thrive!

Frequently asked questions

How do I know my plants need boron?

Hollow stems in broccoli and cauliflower, cracked or corky beets and celery, and poor fruit set on apples and grapes are classic signs. Boron shortage is common in sandy and high-pH soils.

How long will one bottle last?

At 1 tsp per quart, the 8 oz bottle makes about 48 watering cans of feed. For a typical shelf of 10–15 plants fed every 1–2 weeks in season, that's several months of feeding — and the 32 oz bottle four times that.

Can too much boron hurt plants?

Yes — the gap between enough and too much is narrow. Use only at the labeled rate, only on crops that need it, and do not repeat more often than directed.

Do I still need a regular fertilizer?

Yes. This targets one shortfall; your regular feed supplies the nitrogen, phosphorus and potassium that drive growth. Use the two together.

How do I apply it?

Water it into moist soil at the labeled rate, or use it as a foliar spray in the morning or evening for a faster response on the leaves.

Which plants need it most?

Broccoli, cauliflower, beets, celery and apples are the most common cases, along with anything showing the deficiency signs above. It suits edible and ornamental plants alike.

When will I see results?

Deficiency symptoms ease on new growth within two to three weeks; leaves that are already damaged will not recolor, but the next ones will come in healthy.

Let's Start Growing!

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Boron Fertilizer $11.99