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  1. Grow More 16 oz. 10N-0P-0K Liquid Supplement | MAXI-CAL
    Grow More 16 oz. 10N-0P-0K Liquid Supplement | MAXI-CAL
    On-Sale $5.16 List Price $8.95
    HLSG SKU: RBG0013001
    SKU: MAXI-CAL
  2. Ranger Pro Herbicide 2.5GAL | 86758415
    Ranger Pro Herbicide 2.5GAL | 86758415
    On-Sale $136.67 List Price $253.40
    HLSG SKU: BYR86758415
    SKU: 86758415
  3. EZ-Flo FERTI-MAXX 2.5 Gal 3N-2P-1K Liquid Fertilizer | FERTI-MAXX-SUGAR-25
    EZ-Flo FERTI-MAXX 2.5 Gal 3N-2P-1K Liquid Fertilizer | FERTI-MAXX-SUGAR-25
    On-Sale $73.15 List Price $110.99
    HLSG SKU: EZGFERTMAXXSUGAR
    SKU: FERTI-MAXX-SUGAR-25
  4. EZ-Flo 128 oz. 5% Iron Additive Supplement | IRON-MAXX-1
    EZ-Flo 128 oz. 5% Iron Additive Supplement | IRON-MAXX-1
    On-Sale $78.84 List Price $100.00
    HLSG SKU: EZGIRONMAXX1
    SKU: IRON-MAXX-1
  5. Grow More 32 oz. Liquid Penetrant | EZ-WET-SOIL-PENETRANT-26
    Grow More 32 oz. Liquid Penetrant | EZ-WET-SOIL-PENETRANT-26
    On-Sale $6.72 List Price $9.95
    SKU: EZ-WET-SOIL-PENETRANT-26
  6. EZ-Flo 128 oz. Carboxylic Acids and Nonionic Surfactants Supplement | HYDRO-MAXX-1
    EZ-Flo 128 oz. Carboxylic Acids and Nonionic Surfactants Supplement | HYDRO-MAXX-1
    On-Sale $59.35 List Price $100.00
    HLSG SKU: EZGHYDROMAXX1
    SKU: HYDRO-MAXX-1
  7. EZ-Flo 128 oz. 12% Humic and Fulvic Acid w/ Mycorrhizae Supplement | ROOT-MAXX-1
    EZ-Flo 128 oz. 12% Humic and Fulvic Acid w/ Mycorrhizae Supplement | ROOT-MAXX-1
    On-Sale $61.63 List Price $105.88
    HLSG SKU: EZGROOTMAXX1
    SKU: ROOT-MAXX-1
  8. EZ-Flo 128 oz. 6N-0P-0K Supplement | COLOR-MAXX-1
    EZ-Flo 128 oz. 6N-0P-0K Supplement | COLOR-MAXX-1
    On-Sale $47.94 List Price $58.99
    HLSG SKU: EZGCOLORMAXX1
    SKU: COLOR-MAXX-1
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When to Apply Fertilizer Supplements

Using fertilizer supplements thoughtfully can greatly benefit your plants and soil, especially when tailored to specific needs. Consider using supplements and probiotics for plants when soil tests reveal nutrient deficiencies, or if plants show signs of deficiency symptoms, like yellowing leaves or rot. If you plan to garden intensively for high-yield crops, prepare for the plants to rapidly deplete the soil. Fertilizer supplements can help replenish secondary and micronutrients more effectively in such systems.

Fertilizer Supplement FAQs

Do indoor plants need fertilizer supplements?

Indoor plants can still benefit from supplements, especially since potting soils can deplete over time. Supplements like calcium and magnesium or trace minerals can enhance indoor plant health when applied appropriately.

How do I know which supplement my plants need?

A soil test is the best way to determine which nutrients are lacking in your soil. With a soil testing kit, you can compare your soil’s pH to normal ranges. Observing your plants can also provide clues: stunted growth, chlorosis (yellowing leaves), or poor fruiting can indicate specific nutrient deficiencies.

Is it possible to overuse fertilizer supplements?

Overusing supplements can lead to nutrient imbalances or toxicities, which may harm plant growth. Always follow recommended application rates for fertilizer supplements and only apply as needed.