Best fertilizers for lemon trees
Researched by Deal.ai's shopping agent across stores on November 7, 2026. Prices below are today's.
Top pick: Down To Earth Organic Citrus Mix 6-3-3. A balanced organic granular feed made for citrus, so it covers nitrogen for leaf growth plus the trace minerals lemons need to set and hold fruit. Scratch it into the soil surface and water in — hard to overdo, and it suits both pots and ground trees.
Who the others suit:
- Expert Gardener Citrus Plant Food (6-4-6) — the simplest all-round granular for a single potted lemon; widely rated and easy to find.
- Jobe's Organics Fruit & Citrus — organic and gentle; the spike version is the fuss-free choice for a patio tree.
- True Organic Citrus & Avocado — another organic granular if you prefer a lower-nitrogen, soil-building feed.
- Citrus Tree Booster or Gardenera liquid — for quick correction of pale, yellowing leaves; mix and water in.
- Sunniland Citrus, Avocado & Mango — a bigger bag for several trees or a mature in-ground lemon.
- SimplyGro spikes — bulk spikes for many trees at once.
Whatever you choose, feed lightly through spring and summer and pause in winter.
The picks
- #1
Down To Earth All Natural Fertilizers Organic Citrus Mix 6-3-3, 5 lb
- Type: Fertilizer
- Primary Use: Fertilizer
- Use: Feed other fruit trees, Feed ornamentals, Feed vines
- Form: Granules
- Material: Organic
- NPK Ratio: 6-3-3
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