4.9 out of 5 Customer Rating
Miracle-Gro® Plant Care® Gnat Control® + Plant Food - DTC - Walmart - The Home Depot - Lowe's is rated 4.7 out of 5 by 47.
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Miracle-Gro

Plant Care Gnat Control + Plant Food

$9.99
4.9 out of 5 Customer Rating
Miracle-Gro® Plant Care® Gnat Control® + Plant Food - DTC - Walmart - The Home Depot - Lowe's is rated 4.7 out of 5 by 47.
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Miracle-Gro
Plant Care Gnat Control + Plant Food
$9.99

Fungus gnats start in the soil, long before you see them hovering over your houseplants. This 2-in-1 formula disrupts the gnat life cycle right where it begins and feeds your indoor plants for up to 3 months, making it an easy first step for every new plant you bring home.

3064324

Key Features

KILLS & PREVENTS FUNGUS GNATS*: Disrupts the gnat life cycle by killing eggs and larvae in the soil to stop infestations before they start, ideal for new plants

2-IN-1 PROTECTS & FEEDS: Combines targeted gnat prevention with plant food that feeds your indoor plants for up to 3 months, all in one simple application

EASY SPRINKLE PACKETS: Open a packet, sprinkle the granules evenly over the soil and lightly water in; number of packets used depends on the size of your pot

*Kills existing eggs & larvae in the soil

Miracle-Gro Plant Care Gnat Control + Plant Food is a 2-in-1 houseplant treatment that kills and prevents fungus gnats by killing the existing eggs and larvae in the soil while feeding plants with needed nutrients for up to 3 months. By disrupting the gnat life cycle in the soil, it helps stop infestations before they start, making it a great preventative treatment for new plant additions to your indoor collection. It also kills nematodes and suppresses thrips, spider mites, aphids, scales and mealybugs. Use 1 packet per 6–7 inch pot and lightly water in. Not only can you use this on your houseplants but also indoor grown herbs and vegetables.

Fertilizer Analysis: 3-0-0 NPK

Active Ingredient: Azadirachtin

Feeding Duration: Up to 3 months

Fertilizer Type: Granular, continuous release

Coverage: Four 6-7 inch containers or one 10-12 inch container

Product Size/Quantity: 2.11 oz. (4 packets, 0.52 oz. each)

SKU #: 3064324

Product Label

This is not the product label. Always read and follow the product label before use.

Safety data sheet can be found at: https://www.scottsmsds.com

Where to Use: Designed specifically for plants grown indoors, including houseplants, vegetables and herbs

When to Use: Apply at the first sign of plant distress or fungus gnat presence. On indoor grown vegetables and herbs, it can be applied up to and including the day of harvest.

How Often to Use: If a severe fungus gnat infestation persists, you can reapply after 3 months.

Formulated for: Indoor houseplants including African violets, alocasia, anthurium, cacti, caladium, calathea, dieffenbachia, fern, ficus, orchid, peperomia, philodendron, pilea, poinsettia, pothos, rubber plant, sedum, spathiphyllum (peace lily), wandering dude, monstera, ZZ plant, spider plant, snake plant, bird of paradise, Swiss cheese monstera, fiddle leaf fig and succulents.

It can also be used on Indoor grown vegetables and herbs including tomato, pepper, beans, radish, carrot, collards, kale, lettuce, spinach, chickpea, lentil, pea, chive, dill, sage, basil, catnip, chamomile, coriander, mint, peppermint, spearmint, rosemary, tarragon, thyme and wintergreen.

  1. Pick your packets: Check the application chart and determine the number of packets you’ll need based on your pot size.
  2. Sprinkle evenly: Open the packet and sprinkle the granules evenly around the soil surface beneath the plant. Keep granules from sitting against the stem or leaves.
  3. Water in: For best results, lightly water in after application.
  • 6-7 inch pot: 1 packet
  • 8-9 inch pot: 2-3 packets
  • 10-12 inch pot: 4-6 packets
  • New houseplants are a common way fungus gnats get indoors, so treat new arrivals with Gnat Control + Plant Food to help stop infestations before they start.
  • Gnat Control + Plant Food feeds for up to 3 months. After that, if a fungus gnat infestation no longer exists, switch to a regular feeding routine with Miracle-Gro indoor plant food.
  • Keep the granules on the soil, not against stems or foliage.
  • Backed by the Scotts Miracle-Gro No-Quibble Money Back Guarantee. If you're not satisfied with the results, you're entitled to your money back. Limitations apply; see terms at scottsmiraclegro.com/no-quibble-money-back-guarantee/.
  • Lightly water in right after you apply for best results.
  • Avoid overwatering. Letting the soil dry out between waterings helps reduce the chance of future fungus gnat infestations.
  • Keep out of reach of children.
  • Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. Remove and wash contaminated clothing before reuse.
  • Store unused product in a clean, dry place.

Frequently Asked Questions

How do I prevent fungus gnats in my houseplants?

Stop them in the soil, where the gnat life cycle starts. Miracle-Gro Plant Care Gnat Control + Plant Food kills fungus gnat eggs and larvae in the soil, which disrupts the life cycle and stops infestations before they start. It also feeds your plant for up to 3 months. Sprinkle the granules evenly over the soil and lightly water in. Then let the soil dry out between waterings, because that also reduces the chance of future infestations.

Gnat Control + Plant Food disrupts the fungus gnat life cycle by killing existing eggs and larvae in the soil, where they live and damage roots. That stops new infestations before they start. The product works at the soil stage, so it isn't a trap for adult gnats already flying around your home.

Yes. Gnat Control + Plant Food is an ideal preventative treatment for new plants. New houseplants are a common way fungus gnats come indoors. Treating a new plant right away disrupts the gnat life cycle in the soil before an infestation can start, and it feeds the plant for up to 3 months while it settles in.

Yes. Gnat Control + Plant Food combines targeted gnat prevention with 3-0-0 NPK plant food that provides your indoor plants needed nitrogen for up to 3 months. After 3 months, reply if a fungus infestation persists, otherwise, switch to a regular feeding routine with Miracle-Gro indoor plant food.

It depends on your pot size: 1 packet for a 6–7 inch pot, 2–3 packets for an 8–9 inch pot, and 4–6 packets for a 10–12 inch pot. Sprinkle Gnat Control + Plant Food evenly over the soil beneath the plant. Keep it off stems and leaves, and lightly water in.

If a severe fungus gnat infestation persists, you can reapply Gnat Control + Plant Food after 3 months. In between, let the soil dry out between waterings to help reduce the chance of gnats coming back.

Yes. Gnat Control + Plant Food can be used on indoor-grown potted vegetables and herbs, including tomato, pepper, lettuce, kale, basil, mint, rosemary and thyme. You can apply it up to and including the day of harvest. See the label for the complete plant list.

Gnat Control + Plant Food kills and prevents fungus gnats by killing existing eggs and larvae in the soil. It does not kill adult fungus gnats. It also kills and controls nematodes. It also suppresses thrips, spider mites, aphids, scales and mealybugs, which means it helps keep them in check but may not fully control them.

Store unopened packets of Gnat Control + Plant Food in a clean, dry place, out of reach of children. To dispose of a partly filled packet, call your local solid waste agency for instructions. Never put unused product down any indoor or outdoor drain.

Keep Gnat Control + Plant Food out of reach of children. It's harmful if swallowed. Wash thoroughly with soap and water after handling.

Rated 5 out of 5 by from Nice 👍 This was so easy to use and nice. From this summer, we are experiencing warmer temperatures and so many flies. This is available on Amazon and helpful to combat the flies. My plants are more vibrant, this also has vitamins and nutrients that are beneficial for my houseplants.
Date published: 2026-08-28
Rated 5 out of 5 by from A simple two-in-one solution to feed plants and help control fungus gnats! This product made my plant care routine much easier. After using it, my plants looked healthier, greener, and more vibrant, and I also noticed fewer fungus gnats around the soil. A little goes a long way, so the amount of product lasts through multiple applications, making it a great value. I like that I don't have to use it too often to maintain healthy plants, which makes it convenient for regular plant care. Overall, it's an easy-to-use two-in-one product that helps keep plants looking their best while helping control pests.
Date published: 2026-07-14
Rated 5 out of 5 by from What I like most about this product is that it helps prevent fungus from my plants. It is an excellent quality product that helps prevent fungal mosquitoes and provides fertilizer for up to 3 months and also controls other pests such as aphids, mites and thrips in indoor plants.
Date published: 2026-07-07
Rated 5 out of 5 by from Easy to use Love this product! This really helped my plants that were on the sadder side and needed a little extra help! I would definitely reccomend and buy again!
Date published: 2026-07-03
Rated 5 out of 5 by from Works well! My plants are happy, healthy, and gnat free! To give this a true test, I trialed it on a plant in my kitchen where gnats are most likely to take up residence. The plant is growing well and enjoyed the extra nutrients.
Date published: 2026-06-30
Rated 5 out of 5 by from Happy healthy plants! As a plant lover who is plagued by gnats, I was ecstatic to try this product. I’ve tried the yellow sticky traps you poke into the plant, pesticide sprays, outlet blue light traps, hydrogen peroxide rinses, changing out the soil. Everything. This seemed like such a great idea. It was so easy to use. Just snip open a packet and sprinkle the granules on top of the soil of your plant. No mess. No touching chemicals. Easy. Then I just watered it in. Done. I noticed fewer gnats in my house and in my plants. My plants were happier and healthier looking. Win-win! I totally recommend this product to any houseplant lovers.
Date published: 2026-06-27
Rated 5 out of 5 by from Very effective This worked very well and I think the plant looks greener with no signs of fungus gnats. I highly recommend it as it was easy to use and effective. Great product.
Date published: 2026-06-26
Rated 5 out of 5 by from Quality product! It works!!! Miracle Gro makes so many fabulous products this one is no different. I grow lots of green plants and this is now a staple at my house! Gnats are inevitable if you have plants but this product can keep them under control!!!
Date published: 2026-06-25
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