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Frank's Fruit Trees

13-6-6 Fertilizer for Citrus Trees

13-6-6 Fertilizer for Citrus Trees

Regular price $4.99
Regular price Sale price $4.99
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Help your citrus tree grow and produce more fruit! We've done the work and found the best fertilizer for potted citrus trees. Sourced by Graco Fertilizer Company, this 13-6-6 fertilizer has the perfect ratio of micro- and macro-nutrients to encourage new growth and fruit production.

The great part is that this small, 1/4 lb. bag of fertilizer will last you up to four years!


Encourage new growth for your potted citrus tree!

Highly recommended to encourage fruit production

One bag lasts up to four years!


1/4 lb. of fertilizer

This small bag will feed one tree in a one-gallon container for four years.


Sprinkle on soil once every two months as follows:

1 gallon . . . . . . . . . 1 teaspoon

2 gallon . . . . . . . . 2 teaspoons

3 gallon. . . . . . . . 1 tablespoon

5 gallon. . . . . . . . . . . . .1 ounce

15 gallon . . . . . . . . . . 4 ounces

20 gallon . . . . . . . . . . 6 ounces

Ingredients & Guaranteed Analysis

Ingredients: Ammonium Nitrate, Ammonium Sulfate, Diammonium Phosphate, Urea-Formaldehyde, Sulfate of Potash Magnesium, Calcium Carbonate, Magnesium Oxide, Sodium Borate, Copper Sulfate Penehydrate, Iron Sulfate, Manganese Oxide, Zinc Sulfate.

Guaranteed Analysis: TOTAL NITROGEN: 13.00%* (3.37% Ammoniacal Nitrogen, 1.01% Nitrate Nitrogen, 2.54% Other/Water Soluble Nitrogen [and/or Urea Nitrogen], 6.08% Water Insoluble Nitrogen), AVAILABLE PHOSPHATE: 6.00%, SOLUBLE POTASH: 6.00%, CALCIUM: 2.00%, TOTAL MAGNESIUM: 5.00%, SULFUR: 6.00% (6.00% Combined Sulfur), BORON: 0.02%, TOTAL COPPER: 0.08% (0.08% Water Soluble Copper), TOTAL IRON: 0.30% (0.30% Water Soluble Iron), TOTAL MANGANESE: 0.30%, TOTAL ZINC: 0.10% (0.10% Water Soluble Zinc)

*6.05% SLOW RELEASE NITROGEN FROM: Urea Formaldehyde

Return Policy

We have a 5-day return policy, which means you have 5 days after receiving your item to request a return.

To be eligible for a return, the fertilizer must be in the same condition that you received it and in its original bag. You’ll also need the receipt or proof of purchase.

If your return is accepted, we’ll send you a return shipping label if needed, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. Please note, all return shipping charges will be deducted from your refund.

For more information, please see our refund policy.

All tree photos are of Frank's Fruit Trees. Photos of fruit are NOT from Frank's Fruit Trees, but are used to show what the fruit will look like once it is produced.

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We're different from other sellers.

  • Transparency

    We use photos of our actual products so you know what you're ordering. None of that small print stuff.

  • Customer service

    We are here to help every step of the way. Have a question before you purchase? A year later? Reach out! We love talking about plants anyway.

  • Small business in Wisconsin

    We aren't a big corporation that pays the big boss and takes from the little guy. Just a family-run small business in Sun Prairie, WI.

  • Indoor fruiting trees

    Our trees never have to be planted in the ground unless you want to. That means they can be grown from any location - as long as they have enough light, of course. Hello, fresh lemonade!

Lemon trees collection

New growers collection