I Love My Garden
Amplify - Root and plant performance treatment for every plant you grow. New smaller sizes!
Amplify - Root and plant performance treatment for every plant you grow. New smaller sizes!
• Not a fertilizer. A natural root signal — derived from Hen of the Woods mushroom.
• Stronger roots mean every plant absorbs more of what you've given, producing better results.
• Works on vegetables, flowers, lawn and houseplants. Safe for edibles, pets and kids.
• Apply 1–4 times a month. See results in 60 days or your money back.
My Montmorency tart cherry gave me six pies, more than ever. I used Amplify from late March, and I honestly think it made the difference. Karen H. Traverse City MI.
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✓ 60-day money-back guarantee — If your garden doesn't respond, we'll refund every penny. No return needed. No forms. We mean it.

18 Days. Same soil. Same Water. Same fertilizer. Control has fertilizer only.
★★★★★ My bell peppers always seemed to stall in August when the heat hit. Started Amplify this spring, and they just kept going, bigger fruit, thicker walls, still producing into September when they usually give up. I used it on my jalapeños, too, and those went absolutely crazy. Frank D. · Bucks County, PA Verified Buyer
★★★★★ I got a little overzealous in June, was applying Amplify almost every week because the early results were so good I thought I could push it further. Then I noticed my tomato plants were getting very tall, very fast, but not setting as much fruit as I expected for their size. Lots of lush green growth, not enough flowering. My husband said they looked like they were trying to win a height contest. I backed off to every two or three weeks, and things balanced out beautifully; the plants stopped racing upward and started putting energy into fruit. Ended up with a fantastic crop. The product works best when you let your plants tell you the pace, not the other way around. Donna K. · Westerville, OH Verified Buyer
What Healthy Roots Actually Look Like
Most gardeners never see this part of the plant. But root structure determines how efficiently plants absorb water and nutrients—and how reliably they grow above ground. Amplify is the only thing you can apply that supports this.
Amplify signals your plants to grow a denser, more active root system.
This is where water and nutrients are absorbed. It is the foundation of stronger, healthier plants without more of your effort.
Amplify sparks your plants to grow roots outward and downward.
Instead of circling and limiting growth, healthy roots expand outward and downward—supporting stronger, more resilient plants.
You've put years into your garden. Amplify helps show it.
Better roots mean more consistent results - across your vegetables, lawn, shrubs, and containers. Everything you grow, performing closer to its potential.
Learn more: the science behind Amplify
Amplify is derived from Hen of the Woods, a well-known edible mushroom, through a careful 3-year fermentation and pasteurization process. The result is a stable, concentrated liquid containing natural signaling compounds that interact with plant biology at the cellular level. There are no live organisms in the bottle. No synthetic chemicals. Just the compounds that tell your plants to open up and absorb more of what's already in your soil. Safe for vegetables, herbs, fruits, trees, flowers, lawn, and houseplants. Safe around pets and children once applied.
How to Use - It's simple
Simple application. Powerful results begin at the root.
Mix
Blend 8 ounces of Amplify with 1 gallon of water in a standard garden sprayer or watering container.
Apply
Apply to leaves and soil, wetting plant surfaces and surrounding soil lightly. Use Amplify alongside your regular fertilizer.
Repeat
Apply at the start of your season, then repeat 1–4 times per month depending on the type of soil, location, plant, and plant response.
Coverage
One gallon of Amplify supports up to 3,600 square feet for the full growing season—costing less than 2 cents per square foot.
Mix & Coverage Diagrams
Frequently Asked Questions
Is Amplify fertilizer?
No - and that's the point. Amplify doesn't add nutrients to your soil. It signals your plants to absorb more of what's already there. Keep using your regular fertilizer alongside it. The better fed your plants are, the more they have to draw from.
How often should I apply Amplify?
Between 1 and 4 times a month. Temperature, humidity, what you're growing, and how your plants are responding all factor in. You know your garden best. Watch how your plants respond and let that guide your rhythm.
SOIL: Apply more frequently in denser soils, such as clay types, or in soils that drain quickly, such as sand.
LOCATION: If you garden in a dry, low-humidity area, apply more often.
PLANTS: It can be used on any plant, but apply it more often if the plant is woody, such as trees, shrubs, and vines, including roses.
PLANT RESPONSE: You know your garden best, so watch the plant response; it will vary across your garden, and increase or decrease application frequency based on what you see. Do not overapply, start out slowly, less is more.
Is Amplify safe?
Completely. Amplify is derived from Hen of the Woods, a common edible mushroom, and pasteurized. No live organisms, no synthetic chemicals. Safe for vegetables, herbs, fruits, flowers, and lawn. Safe around pets and children. Follow label directions.
How long does one gallon last?
One gallon of Amplify concentrate makes 16 gallons of mix. Less than $3.75 per treatment. Applying more frequently during the season is normal and still cost-effective. Every 8 ounces of concentrate mixed into water covers about 300 square feet. 1 gallon of Amplify concentrate mixed into 16 gallons of water covers about 3500 square feet. Less than 2 cents per square foot.
Can I use it on Vegetables, Lawns, Shrubs, and Flowers?
Yes. Everything. Vegetables, fruit trees, flowers, perennials, lawn, shrubs, containers, and houseplants. If it grows, Amplify works on it.
Where do you ship?
We ship to the continental US, 48 states. We do not ship to Alaska or Hawaii.
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My tomato plants experienced quite a bit of damage from wind, the leaves curled, plant drooped. I had heard that Amplify helped in transplanting and thought I'd try it. I sprayed the leaves and base of my plants, within 3 days they were greener, had uncurled and began pushing flowers. John Gorden Palo Alto CA.
My heartleaf philodendron had been sitting in the same pot for four years without doing much. Started Amplify in March and by May it was putting out a new leaf every week. It's trailing two feet past the shelf now. I've started propagating it just to keep up.
My bougainvillea covers the back fence and it's always spectacular in spring, then fades in summer. This year it kept blooming heavily right through August — fuller and brighter than I've seen it. The neighbors' side looks over my fence specifically to see it. I'll keep Amplify in the routine.
My Limelight hydrangea is 10 years old and has always been a good performer, but this summer the blooms were the biggest I've ever had. The heads were so heavy they were bending the branches. I posted a photo and everyone wanted to know what I was doing. Amplify is my answer.
My Montmorency tart cherry is the centerpiece of my backyard. Some years it gives me enough for four pies, some years barely two. This year — six pies worth and some left over for jam. I'd been using Amplify monthly since April and I honestly think that's what made the difference.
I overseeded with ryegrass last fall and started Amplify when things greened up in April. Best establishment I've ever had — thick and dark green by Memorial Day. The neighbor who's had a better lawn than me for 15 years actually asked what seed I used. First time that's ever happened.
My blueberries are in their sixth year and I expected them to be fully mature producers by now. They were okay but not great. After one season with Amplify the yield nearly doubled. I froze eight pounds this summer. My husband asked if I'd somehow snuck in extra plants.
Tall fescue is supposed to be drought-tolerant but mine was looking rough by July every year. This summer with Amplify it stayed green a full month longer before showing any stress. I cut back on watering and it still looked better than previous years at full water. That impressed me.
I grow pumpkins every year for the grandkids and this year they were spectacular — biggest I've ever grown. The vines ran farther and set more fruit. I had seven jack-o-lantern size pumpkins off two plants. The grandkids thought I'd done some kind of magic. I told them it was science.
I'm in the San Fernando Valley and tomato season runs long here, but the heat in August always stresses my plants into dropping blossoms. This year with Amplify I had almost no blossom drop through the entire heat spike in late July. Kept producing right into November. Best tomato year I've had in California.
Year-round containers here in San Jose — I keep petunias going almost twelve months. Since starting Amplify the plants bloom more continuously with almost no dead periods between flushes. I used to deadhead constantly to keep them going. Now they seem to take care of themselves.
Water restrictions every summer in Southern California mean my lawn has always suffered in July and August. This year I cut back my watering schedule by 20% and the lawn still looked better than it usually does at full water. The Amplify is clearly helping the roots get more from less. That alone is worth the cost.
Central Valley summers are brutal on stone fruit and I lose a lot of crop to heat split. This year my nectarine held the fruit longer without splitting and the fruit that made it to harvest was noticeably larger. My daughter said it was the best nectarine she'd ever tasted. I'd have to agree.
I cut zinnias every week for the house all summer. This year I had to cut them every four days they were producing so fast. The plants branched more heavily than usual and the bloom size was noticeably bigger. Best cutting garden I've had in years.
We planted our apple trees 25 years ago and they've had good years and bad. Last few years the crops had been light. This season after starting Amplify the trees set the heaviest crop in at least ten years. Made more applesauce and cider than we knew what to do with. Good problem to have.
I started using Amplify every week on my herb garden because I figured more was better. By midsummer my basil was shooting straight up, all stem and not much leaf — classic leggy growth. I've been gardening long enough to know what that means: the plant is putting energy into reaching rather than filling out. I cut back to once a month and within three weeks the basil was bushy and branching again, producing more leaf than I knew what to do with. The lesson: this product actually works, so you don't need to overdo it. Once a month was right all along — I just had to learn it myself.
Coleus is my go-to for the shady spots under the maple. This year the plants were fuller and the color was more intense — especially the reds. Grew much faster than usual and I didn't have to pinch them back as often to keep them bushy. Pleasantly surprised.
I've had my snake plant for 11 years and it had never once produced a pup. I started Amplify in spring just out of curiosity and by fall it had sent up three pups from the base. Eleven years of nothing, then three new plants in one season. I don't fully understand it but I'm very pleased.
My Black Mission fig has been in this yard longer than I have — I inherited it with the house. Good tree, always produces, but I decided to try Amplify this spring just to see. The summer crop was early and heavy and the fall crop that followed was the biggest I can remember. Fresh figs every morning for six weeks.
I grow salad greens year-round here in the Bay Area. My fall and winter beds were noticeably more vigorous this year after I started using Amplify. The plants were slower to bolt in the warm spells and stayed in better condition longer. I've been cutting salad every other day since October.
Sweet corn in a home garden is a lot of work for not many ears, but I do it every year anyway because nothing tastes like it. This year the ears were bigger and the stalks were noticeably sturdier — didn't lose a single stalk to the July wind like I usually do. Worth every bit of the effort.
I've been growing tomatoes in my Connecticut backyard for 35 years and I thought I'd seen everything. This summer I started using Amplify in early June and by mid-July my Brandywines were setting fruit like I hadn't seen in a decade. No blossom drop, no mid-season slump. My neighbor kept asking what I was doing differently and honestly I just pointed at the bottle.
My rhododendrons have been in the ground for 20 years and I wasn't sure I'd see much difference. Wrong. The bloom this spring was the fullest in years — more buds, better color, and the leaves stayed dark green all summer instead of fading in August like they usually do.
I have a large herb garden — basil, rosemary, thyme, oregano, cilantro, two kinds of sage. My basil this year was extraordinary. It grew faster, stayed bushy longer before bolting, and the flavor was more intense than usual. My rosemary, which I've had for 15 years, pushed more new growth this season than it has in years.
Hot Illinois summers always beat up my Kentucky blue. I've overseeded every fall for years just to maintain it. This summer with Amplify starting in May the lawn held its color through the July heat better than it ever has. I still overseeded in fall but there was noticeably less bare ground to fill.
I have 14 rose bushes — hybrid teas mostly, some shrub roses. I've tried everything over the years. Started Amplify this spring alongside my usual fertilizer program and the rebloom cycle was faster and the flowers were bigger through the whole season. My best rose year in at least five.
I grow about 20 pepper plants every year — Anaheims, poblanos, a few serranos. This year the plants set fruit earlier and held it better through the heat. My poblanos were the biggest I've ever grown. I make chile verde every fall and this batch was exceptional.
My lawn went through a rough couple of summers with drought — lots of brown patches even though I water. Started Amplify in May and the lawn came back thicker and greener than I expected by July. The bare spots from last summer filled back in. My lawn guy noticed and asked what I'd done.
My zucchini have always been productive but this year they were almost too much — I was leaving bags on the neighbors' doorsteps by August. The plants themselves looked healthier too, darker green leaves, no powdery mildew until much later in the season than normal.
My grandmother planted a lilac in the backyard of this house 60 years ago and I've tended it my whole life. It's always bloomed but the last several years the blooms had been sparse and small. This spring after starting Amplify last fall it bloomed fuller than it has in 20 years. I cried a little, honestly.
Your best garden season starts in the soil.
60-day money-back guarantee. No return needed. If it doesn't work, you don't pay.
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Amplify supports plant processes and is not fertilizer. Results vary based on conditions.