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Lost Coast Plant Therapy concentrate, 12 fl oz bottle, for plant pests and diseases.
Lost Coast Plant Therapy concentrate spray bottle with green cap and label for plant pest control.
Lost Coast Plant Therapy 1-gallon concentrate bottle, green cap, for eliminating pests and mildew.
Lost Coast Plant Therapy 2.5 gal concentrate jug with label.
Lost Coast Plant Therapy concentrate, 12 fl oz bottle, for plant pests and diseases.
Lost Coast Plant Therapy concentrate spray bottle with green cap and label for plant pest control.
Lost Coast Plant Therapy 1-gallon concentrate bottle, green cap, for eliminating pests and mildew.
Lost Coast Plant Therapy 2.5 gal concentrate jug with label.

Lost Coast Plant Therapy - Organic Pest Control Concentrate

Official Lost Coast Plant Therapy Dealer Model: LCPT-12OZ
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 $59.99 USD
  • 1 oz of concentrate makes 1 gallon of spray for high-volume coverage
  • Dual-action formula suffocates insects and cleans fungal growth while balancing surface pH
  • Safe for use alongside beneficial insects like ladybugs and bees when applied as directed
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are transitioning to organic pest management because your previous chemical treatments left toxic residue.
  • You are applying a contact wash late in the cycle because systemic poisons are not an option near harvest time.

What We Found

  • We noticed this leaves no oily residue on the harvest material even when you apply it late in the flowering stage.
  • This concentrate mixes much faster in cold water than the thick oil-based sprays we used to stock in the shop.

What Users Say

  • Operators told us they stopped losing entire sections of the crop to mites after switching to this contact wash.
  • Users who spray weekly say they stopped worrying about pests because the contact kill keeps populations in check.

Lost Coast Plant Therapy Plant Concentrate

Soft-bodied insects and powdery mildew are two of the most persistent threats to any grow — and most chemical treatments solve one while creating new problems. Lost Coast Plant Therapy Plant Concentrate eliminates both on contact using a biodegradable, organic-certified formula that won't harm beneficial insects, leave toxic residue, or pollute the environment. Available in four sizes — 12 fl oz, 32 fl oz, 1 gallon, and 2.5 gallon — each bottle is a high-ratio concentrate that mixes with water, stretching your supply whether you're treating a few houseplants or running a full commercial operation. For growers focused on holistic plant health, pairing this wash with the right plant nutrients ensures your garden stays resilient and productive.

Lost Coast Plant Therapy works through a dual-action mechanism: it suffocates soft-bodied insects like spider mites, thrips, aphids, and whiteflies through contact while simultaneously cleaning plant surfaces of powdery mildew, mold, rust, and fungus — and balancing surface pH to prevent their return. CCOF-approved and Clean Green Certified, it's produced in small batches in Humboldt County, California. Safe for bees, ladybugs, and praying mantis when used as directed.

📝 Note: Bottle cap colors may vary.

Features

🐛
Contact Kill for Soft-Bodied Insects

Eliminates spider mites, thrips, aphids, and whiteflies on contact via suffocation and dehydration — no systemic poisons required.

🍄
Fights Powdery Mildew, Mold & Fungus

Cleans fungal growth from plant surfaces and balances pH on contact, reducing conditions that allow mildew and mold to return.

🐝
Safe for Beneficial Insects & People

Will not harm bees, ladybugs, or praying mantis when used as directed. Leaves no harmful residue on plants or produce.

🌿
Clean Green Certified Organic

Third-party Clean Green Certified and CCOF-approved. Meets national and international organic, sustainable, and regenerative program standards.

💧
High-Ratio Concentrate — 4 Sizes

Mix 1 oz per gallon of water. The 12 fl oz makes 12 gal, 32 fl oz makes 32 gal, 1 gal makes 128 gal, and 2.5 gal makes up to 320 gallons of spray.

🇺🇸
Small-Batch Made in the USA

Crafted in small batches in Humboldt County, California since 2017 — trusted by over 230,000 users and responsible for replacing 29+ million gallons of chemical pesticides.

Ingredients

Lost Coast Plant Therapy is formulated with just simple, organic, and biodegradable ingredients — each chosen for effectiveness, safety, and sustainability. Certified organic, food grade, and cosmetic grade, the formula is tough on pests and mildew while remaining safe for plants, people, and the environment when used as directed. Unlike many other soaps, we never use sodium lauryl or laureth sulfate.

Active Ingredients
  • Soy Oil — Food grade, organic, non-GMO. Suffocates pests on contact.
  • Peppermint Essential Oil — Organic, food grade, never synthetic. Repels pests naturally.
  • Citric Acid — Organic, plant-derived from Cassava root. Balances pH to combat mildew and fungus.
Inert Ingredients
  • Soap — Eco-certified, plant-derived. Improves spray coverage and emulsification.
  • Isopropyl Alcohol — Cosmetic grade. Helps formula adhere to surfaces and dries out pests on contact.
  • Sodium Citrate — Food grade. Stabilizes formula and buffers pH.
  • Water — Purified via reverse osmosis for consistent, contaminant-free application.

Concentrate Coverage by Size

Concentrate Size Ready-to-Use Spray Yield
12 fl oz 12 oz concentrate mixes with water to make 12 gallons of spray
32 fl oz 32 fl oz concentrate mixes with water to make 32 gallons of spray
1 Gallon 1 gallon concentrate mixes with water to make 128 gallons of spray
2.5 Gallon 2.5 gallon concentrate mixes with water to make 320 gallons of ready-to-use spray

How to Apply

Always follow the directions printed on your bottle for best results. Lost Coast Plant Therapy is available in concentrate form only — do not apply undiluted.

  1. Shake the concentrate bottle thoroughly before measuring.
  2. Fill your application sprayer with purified water first.
  3. Clear the lines of your sprayer before adding concentrate.
  4. Add concentrate at a ratio of 2 tbsp (1 oz) per 1 gallon of water.
  5. Agitate the mixed contents of the sprayer before applying to plants.
  6. Continue to agitate the mixture approximately every 5 minutes during use.

📝 Note: Bottle cap colors may vary.

What's Included

  • Lost Coast Plant Therapy Plant Wash Concentrate (available in 12 fl oz, 32 fl oz, 1 Gallon, or 2.5 Gallon — select your size above)

FAQ

How does Lost Coast Plant Therapy actually kill insects?+

The formula works through physical — not chemical — action. It suffocates soft-bodied insects like spider mites, thrips, aphids, and whiteflies on contact while simultaneously dehydrating them. Because it's a contact kill, no systemic toxins are left in plant tissue after application.

Which size should I choose?+

The 12 fl oz and 32 fl oz are ideal for home gardens, grow tents, and small-scale operations — yielding 12 and 32 gallons of spray respectively. The 1 gallon (128 gal yield) and 2.5 gallon (320 gal yield) options are best suited for commercial grows or growers who spray frequently and want the best cost-per-gallon value. All sizes use the same 1 oz per gallon mix ratio.

Will this product hurt my bees or other beneficial insects?+

No — Lost Coast Plant Therapy is safe for bees, ladybugs, and praying mantis when used as directed. The biodegradable formula specifically targets soft-bodied pest insects and does not leave residue that would harm pollinators or other beneficial insects in your garden or grow space.

Can I use this on food crops and edible plants?+

Yes. Lost Coast Plant Therapy is CCOF-approved and Clean Green Certified, meaning it meets the standards for use on organic food crops. The formula does not leave harmful residue on plants or produce. Always refer to the label directions for guidance on application timing relative to harvest.

Does it also treat powdery mildew and mold?+

Yes. In addition to pest control, Lost Coast Plant Therapy cleans powdery mildew, mold, rust, and fungus from plant surfaces on contact. It also helps balance surface pH, which reduces the conditions that allow mold and mildew to re-establish between applications.

Is this suitable for commercial growing operations?+

Absolutely. Lost Coast Plant Therapy is used by both home gardeners and large-scale commercial farms. Its Clean Green Certification meets international organic program standards, and the larger 1 gallon and 2.5 gallon concentrate sizes make it highly cost-effective at scale. For a deeper dive into plant health management, see our cannabis nutrients 101 guide.

Where is Lost Coast Plant Therapy made?+

Lost Coast Plant Therapy is produced in small batches in Humboldt County, California. Small-batch production ensures consistent quality and performance across every size. The brand has been operating since 2017 and has replaced over 29 million gallons of chemical pesticides with its biodegradable formula.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

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