Lime Tree Fertilizer

Lime Tree Fertilizer by TPS Plant Foods

Support deep green leaves, fragrant blooms, and healthy lime development with a liquid fertilizer made for lime trees. It provides consistent nutrition for healthy growth while keeping plant care straightforward.

Use it as part of your normal watering routine for simple, consistent feeding during active growth.

Why You'll Love It

  • Fruit Development Supports fruit set and size on Persian, Key and finger limes.
  • Healthy Foliage Feeds deep green leaves on trees showing yellowing between the veins.
  • Steady Growth Fuels the new flushes a lime tree needs to keep producing.

Made by growers

More than a bottle on a shelf.

  • Talk to real plant people. The team that mixes the formula answers your email.
  • Made in-house, in the USA. Every bottle mixed and filled by us, not a third party.
  • We're growers, not resellers. We use this on our own plants before it ships.
  • Bundle savings only here. Pair any two TPS formulas — your order ships free.

Liquid lime tree fertilizer with a 3.6-3-5.1 NPK plus kelp. Supports deep green leaves, fragrant blooms, and more limes.

How to Use Lime Tree Fertilizer

MethodAmountHow Often
Watering can2 Tbs (30 mL) per gallon of waterSpring & summer: every 1–2 weeks
Watering canSame dilutionFall & winter: every 2–4 weeks
Hose end sprayerSet dial to 1 oz (30 mL) settingSpring & summer: every 1–2 weeks
Leaf misting (optional)1 tsp per quart (32 oz) of waterEvery 1–2 weeks

Mix into your normal watering — no separate feeding routine needed.

What's Inside

The 3.6-3-5.1 ratio is built for a heavy-feeding citrus tree. Nitrogen at 3.6% fuels the flushes of new growth lime trees push through the warm season, and potassium at 5.1% — the highest of the three — drives fruit size, juice content, and rind quality. All of the nitrogen is nitrate nitrogen, the form roots absorb directly, so response is fast and burn risk stays low in the well-draining soil limes need.

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. Iron, magnesium, and zinc are the three citrus run short of first, showing as yellowing between the veins — the classic sign of a hungry lime tree.

Made For

Every lime tree: Persian (Bearss), Key lime, Kaffir, and Australian finger lime — in-ground in warm zones and in patio containers, including dwarf and indoor-grown trees brought in for winter.

Problems It Solves

  • Yellowing between the veins on leaves
  • Small fruit or light fruit set
  • Slow growth and few new flushes
  • Leaf drop and thin, weak canopy

FAQs

How often should I feed my lime tree?

Every 1–2 weeks during spring and summer while it's actively growing and fruiting, and every 2–4 weeks in fall and winter. Diluting into your regular watering (2 Tbs per gallon) keeps nutrition steady — limes are heavy feeders and do better with consistent feeding than a few heavy applications a year.

My lime tree's leaves are yellowing between the veins — will this fix it?

That pattern is the classic iron, magnesium, and zinc shortfall citrus hit, and all three are in the formula. Existing yellowed leaves won't fully green up again, but new growth should come in dark and even within a few weeks of regular feeding.

Why is my lime tree dropping fruit or not setting any?

Some fruit drop after bloom is natural — the tree sheds what it can't carry. Heavier drop or poor set often traces to inconsistent watering, temperature swings, or nutrient shortfall. Steady feeding and even watering help the tree hold more fruit; potted limes especially need consistent moisture to keep from dropping.

Can I use it on potted and indoor lime trees?

Yes, at the same dilution. Container limes benefit most, since potting mix runs out of nutrients faster than garden soil and these are often the hungriest trees. Use the watering can rate for pots and the hose end sprayer for in-ground trees. Indoor limes brought in for winter can stay on the lighter cool-season schedule.

When will I see results?

New growth typically comes in greener within the first few weeks of regular feeding, and yellowing from micronutrient shortfall corrects on new leaves. Fruit improvements follow the tree's cycle — consistently fed limes set and size fruit noticeably better over the season.

Related Products

Citrus Fertilizer Lemon Fertilizer Fruit Tree Fertilizer