Humboldts Secret Everything Outdoor Plant Food | 5-5-5 Liquid Fertilizer with Norwegian Kelp | All Purpose Lawn, Vegetable & Fruit Food | Garden Nutrients | Refillable Hose End Bottle | 2.5 Gallon
Humboldts Secret Everything Outdoor Plant Food | 5-5-5 Liquid Fertilizer with Norwegian Kelp | All Purpose Lawn, Vegetable & Fruit Food | Garden Nutrients | Refillable Hose End Bottle | 2.5 Gallon
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Humboldts Secret Everything Outdoor Plant Food | 5-5-5 Liquid Fertilizer with Norwegian Kelp | All Purpose Lawn, Vegetable & Fruit Food | Garden Nutrients | Refillable Hose End Bottle | 2.5 Gallon

Key item features

  • Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance.
  • ‌Promotes Lush and Healthy Growth: Everything Outdoor provides a balanced 5-5-5 nutrient ratio that acts as a liquid lawn fertilizer to encourage steady growth, deep roots, and vibrant color. It supplies consistent nutrition to grass, shrubs, and trees, helping maintain strong and healthy outdoor plants.
  • Simplifies Feeding for Every Garden: This easy-to-use formula connects to any standard garden hose for fast and even application. Designed as a liquid plant fertilizer, it allows quick feeding without measuring or mixing, ensuring plants across lawns and gardens receive nutrients efficiently.
  • Strengthens Roots and Soil Health: Formulated with kelp and trace minerals, this liquid plant food outdoor enhances nutrient uptake and supports active soil biology. It improves root structure and overall plant resilience for vegetables, fruit trees, and ornamental plants in a wide range of outdoor settings.
  • Provides Balanced Nutrition Year-Round: This outdoor plant fertilizer spray delivers an even 5-5-5 nutrient blend of nitrogen, phosphorus, and potassium for balanced results. It supports continuous growth, flowering, and fruiting, helping plants maintain vigor throughout changing seasons and conditions.
  • Designed with a Convenient Refill Bottle: Made with Humboldt Secret nutrients, this liquid fertilizer for outdoor plants comes in a refillable hose-end bottle for continued use. It provides complete nourishment for lawns, gardens, and fruit trees, making it a reliable all purpose plant food for ongoing care.
Current price is $139.97
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Sold and shipped by HS Supplies
4.9491525423728815 stars out of 5, based on 59 seller reviews(4.9)
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4.7 out of 5 stars
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Showing 1-3 of 15 reviews

Apr 1, 2026
Walmart customer
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Size: 32 Ounce
Sold and shipped byHS Supplies
5 out of 5 stars review

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Lots of Nitrates, Potash %26 Kelp

This is a fertilizer that can be used with a garden hose up to 3200 square feet every 4 weeks. Like most spray fertilizers, it works best when applied in the early morning or late in the evening so that it soaks into the vegetation without any loss from evaporation. The directions say it should be applied 24 hours before or after a lawn mowing if used on grass, and watered in within 24 hours. It should not however be applied within a few days of heavy rain or in conjunction with any pesticides. I like that the main ingredients are soluble nitrates, phosphates and potash. It also has "lots of kelp." These are the best ingredients for any lawn/vegetation growth. For my use, I will get two, almost three, uses from it for our front and back yard lawn.

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Mar 28, 2026
Toni
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Item details
Size: 32 Ounce
Sold and shipped byHS Supplies
5 out of 5 stars review

Verified Purchase

wow..my tomatoes are So happy. i luv this product...it includes almost as many 'nutrients' as i take myself. it appears pure and healthy for my plants, vegs and trees. am looking forward to a healthy yard thanks to everything outdoor. what a sensible product!

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Mar 24, 2026
Amber
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Item details
Size: 32 Ounce
Sold and shipped byHS Supplies
5 out of 5 stars review

Verified Purchase

Simple to use. Love that it's multipurpose

Overall this is simple to use. Not too heavy. I like that I can use it on everything so I don't have to switch out my products all the time. Sure it's not the strongest but it's a nice addition for plant growth. I like the sprayer for this, it's easy.

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