Espoma Organic Iron-Tone 3-0-3 Fertilizer 5 lb — Corrects Iron Deficiency, Non-Staining Granules

Espoma Organic Iron-Tone 3-0-3 is an organic granular plant food formulated to correct iron deficiency (chlorosis) and restore green color to yellowing foliage without staining surfaces.

If leaves are turning pale or yellow while veins stay darker, your plants may be showing iron deficiency. Espoma Iron-Tone combines 6% iron with sulfur and organic nutrients in a ready-to-use granular formula that feeds lawns, shrubs, trees, and flowers. Approved for organic gardening and made in the USA, this 5 lb bag is designed to be simple to apply and safe around patios and walkways.

How quickly will I see greener leaves after applying Iron-Tone?

Results depend on severity of chlorosis, plant type, and soil conditions, but many gardeners notice leaf color improvement within a few weeks of application. Iron-tone supplies plant-available iron along with sulfur to help correct the nutrient imbalance that causes yellowing. Continued monitoring and follow-up applications may be needed for persistent cases.

• Typical visible improvement: often within 2–6 weeks
• Works on both woody plants and herbaceous flowers
• Reapply as needed based on new growth and soil testing

Can I use this fertilizer on my lawn and around ornamentals safely?

Yes—Iron-Tone is formulated for use on lawns, shrubs, trees, and annual or perennial flowers. It is a granular, ready-to-apply product that won’t stain patios or walkways when used as directed. Use targeted applications where iron deficiency appears rather than blanket feeding to conserve product and focus correction.

• Safe for turf areas showing uniform chlorosis
• Appropriate for landscape shrubs and ornamental trees
• Non-staining formulation for paved surfaces and decks

What makes Iron-Tone suitable for organic gardening?

Iron-Tone is an approved Organic Input Material, meaning it meets organic production standards for ingredient sourcing and manufacturing. The formula uses organic components enhanced with Espoma's Bio-tone to support soil biology while supplying iron and sulfur. It contains no sludges or fillers, focusing on concentrated, usable nutrients.

• Registered for organic use—meets organic input requirements
• Contains natural organic ingredients enhanced with Bio-tone
• No sludge, fillers, or unnecessary additives

How should I apply Iron-Tone for best results?

Apply when you first notice yellowing leaves, following label directions for rates by plant type and size. The product is ready to use—no mixing required—so you can spread granules evenly around the root zone and water in lightly. For trees and large shrubs, apply in a band or spread over the drip line; for lawns, use a spreader for even coverage.

• Apply at first sign of iron deficiency (yellowing leaves)
• Spread granules around the root zone and water after application
• Adjust rates for plant size: banding for trees, spot-treating for individual shrubs

Who is this for: Espoma Iron-Tone is aimed at home gardeners, landscape contractors, and hobby growers who need a dependable, organic solution for iron deficiency in ornamental and turf plants. It suits anyone managing lawns, container plants, garden beds, shrubs, or trees who wants an organic, non-staining iron fertilizer that’s easy to apply and compatible with certified organic production.

Ingredients

organic ingredients