Avocado Tree Fertilizer for Leaves & Fruit Set

When your avocado tree may benefit from feeding

When your avocado tree starts a new leaf-growth flush in warm conditions
When a young outdoor avocado is actively building its canopy and a soil assessment supports feeding
When a container avocado is growing strongly and the potting mix needs nutrient replenishment
When leaf or soil analysis identifies a nutrient gap in an established avocado tree

Avocados are sensitive to poor drainage and fertilizer salt buildup; brown leaf tips are not proof of a deficiency. Do not feed a chilled or waterlogged tree to force growth.

Results you can see

Supports healthy fruit development for fuller, better-looking avocados.

Supports fresh shoot and leaf development for a fuller, thriving avocado tree.

Supports healthy root development for better water and nutrient uptake.

Works for avocado tree varieties

Hass Avocado
Fuerte Avocado
Reed Avocado
Bacon Avocado
Avocado Tree

How to use

Watering can

2 Tbs (30 mL) per gallon of water

Spring & summer: every 1–2 weeks · Fall & winter: every 4 weeks
Hose end sprayer

Set dial to 1 oz (30 mL) setting

Spring & summer: every 1–2 weeks
Leaf misting (optional)

1 tsp per quart (32 oz) of water

Every 1–2 weeks

What's inside

The 3.6-3-5.1 ratio is built for a subtropical fruit tree with a long crop cycle. Nitrogen at 3.6% fuels the canopy that feeds the fruit, and potassium at 5.1% — the highest of the three — drives fruit size and quality through the many months an avocado takes to mature. Critically, all of the nitrogen is nitrate nitrogen at low salt concentration: avocados have shallow roots that are unusually sensitive to salt, so a clean, low-salt formula matters more for them than for most fruit trees.

Beyond NPK: sea kelp (Ascophyllum nodosum) for natural growth compounds, plus calcium at 2.1% — unusually high, and what firms fruit and strengthens new growth — magnesium (0.75%), iron, manganese, zinc, boron, and copper. Zinc in particular is a classic avocado shortfall, showing as small leaves and poor growth, and boron supports the flowering and fruit set avocados depend on.

Label facts

NPK 3.6-3-5.1 with 2.1% calcium and 0.75% magnesium, plus iron, manganese, zinc, boron and copper.

Derived from kelp (ascophyllum nodosum), potassium phosphate, potassium nitrate, calcium nitrate, magnesium nitrate, boric acid, copper sulfate, ferric sulfate, manganese sulfate, zinc sulfate.

One 8 oz bottle makes 8 gallons of feed at 2 Tbs per gallon — the 32 oz makes 32.

Store cool and dark. Guaranteed 12 months from purchase; keeps up to 2 years.

How to care for avocado trees

Light

Full sun, at least six hours a day. Young trees appreciate shade from harsh afternoon sun through their first summer, and potted avocados indoors want the brightest window you have.

Water

Water deeply, then let the top two inches of soil dry before watering again. Avocados resent standing water, so drainage matters more than how often you water.

Soil

Loose, fast-draining soil with plenty of organic matter, pH 6.0 to 6.5. In pots, a bark-heavy citrus mix works well. Avoid heavy clay unless you raise the bed.

Temperature

Happiest between 60 and 85F. Most varieties suffer below 30F, so move potted trees indoors before the first frost and wrap young trunks in colder regions.

Feeding

Feed Avocado Tree Fertilizer every one to two weeks in spring and summer, and about once a month in fall and winter, mixed into your normal watering.

Pruning

Prune lightly in early spring to keep the canopy open and the height manageable. Remove suckers below the graft and any branches that cross or rub.

Frequently asked questions

How often should I feed my avocado tree?

Avocado Tree Fertilizer is meant for light, steady feeding rather than occasional heavy doses. Mix 2 tablespoons per gallon of water and apply every 1 to 2 weeks in spring and summer while your tree is actively growing, then every 4 weeks in fall and winter. Avocados have shallow roots that are unusually sensitive to salt, which is why the formula uses all-nitrate nitrogen at a low salt concentration: consistent, dilute feeding through your normal watering suits them far better than infrequent large applications.

Why are my avocado's leaf tips turning brown?

Brown, scorched leaf tips are the classic avocado salt problem. They come from salty or chloride-heavy water, or from over-fertilizing with high-salt products, and your tree's shallow roots show the damage quickly. Avocado Tree Fertilizer is formulated with all-nitrate nitrogen at a low salt concentration so that feeding doesn’t add to the load. Water deeply now and then to flush accumulated salts down through the soil, use better-quality water if you can, and keep to 2 tablespoons per gallon.

My avocado flowers but doesn't set fruit — why?

Usually pollination or weather rather than nutrition. Avocados have an unusual flowering pattern: trees are type A or type B, and their flowers open as male and female at different times of day, so a second tree of the opposite type improves pollination. Cool weather during bloom and a young tree’s age also limit set. Avocado Tree Fertilizer supplies boron, which supports flowering and fruit set, and potassium for fruit development, but pollination conditions are often the deciding factor.

Will this burn my tree?

Avocado Tree Fertilizer is a dilute liquid feed, and dilution is what matters here. Fertilizer burn happens when concentrated salts sit against the roots: too much product in too little water, or granules piled at the trunk. Our formula uses all-nitrate nitrogen at a low salt concentration because avocado roots are salt-sensitive; mixed at 2 tablespoons per gallon every 1 to 2 weeks in the growing season, the nutrients arrive in solution as part of a normal watering. Start newly planted trees at half strength for the first two feedings and water well afterward.

When will I see results?

New growth comes in greener within the first few weeks of feeding, since all the nitrogen in Avocado Tree Fertilizer is nitrate and available to the roots right away. Small-leaf and slow-growth symptoms, often a zinc shortfall on avocados, improve on new growth over a season as the zinc in the formula reaches your tree. Fruit follows the tree’s own long cycle: avocados take many months to mature, so crop improvements show up at harvest rather than in weeks.

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