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The Daily Insight

Is Miracle Gro safe for herbs

Author

Victoria Simmons

Published Mar 08, 2026

Miracle-Gro Water Soluble Plant Food Vegetables & Herbs feeds your garden instantly and easily. It’s great for tomatoes, squash, peppers, cucumber, carrots, basil and other herbs and vegetables. Also, use Miracle-Gro Water Soluble Plant Food Vegetables & Herbs with Miracle-Gro Soil for even more harvest (vs. unfed).

Is Miracle-Gro safe for edible plants?

Miracle-Gro can be used on edibles as well as ornamentals. Just don’t overdo this either. Follow the label directions. More is not better.

Is Miracle Grow safe for basil?

Feed basil plants regularly with MIracle-Gro® Performance Organics® Edibles Plant Nutrition one month after planting. You can start harvesting when your plant is 6-8 inches tall.

Is Miracle Grow toxic to humans?

Safety Information. Miracle-Gro contains urea, which can irritate the mouth, throat, esophagus and stomach. Swallowing it can cause nausea and vomiting. … Call a doctor or poison control center and do not induce vomiting unless instructed to do so.

Can I use Miracle Grow on my rosemary?

Starting a month after planting, feed your rosemary with Miracle-Gro® Performance Organic® Edibles Plant Nutrition Granules according to label instructions. Not only will this nourish your plant, but it will also feed the soil microbes around the plant that help your rosemary take in as much nutrition as it needs.

Why you shouldn't use Miracle-Gro?

Miracle-Gro supplies an enormous amount of nitrogen for plants so that they grow big, bushy, green, and fast. … MG is so strong that if used incorrectly, the fertilizer will actually burn the leaves and roots of your plants (you may have already experienced this).

Is Miracle-Gro OK for vegetables?

Your plants are hungry. … Miracle-Gro Water Soluble All Purpose Plant Food is safe for all plants guaranteed not to burn when used as directed and starts to work instantly. Use on all flowers, all vegetables, houseplants, roses, and all trees and shrubs.

What ingredients are in Miracle-Gro?

  • Urea Phosphate. Urea phosphate is a crystalline substance made by reacting urea with orthophosphoric acid. …
  • Potassium Chloride. …
  • Sodium Molybdate. …
  • Ammonium Phosphate. …
  • Zinc Sulfate. …
  • Copper Sulfate and Chlorine. …
  • Boric Acid. …
  • Manganese EDTA, Disodium Salt.

What can I use instead of Miracle-Gro?

You can use coffee grounds as Miracle Gro alternatives. Many plants, including Azaleas, tomatoes, blueberries, roses, and rhododendron, thrive best in acidic soil, and recycling your coffee grounds can help acidify your soil.

Is it safe to fertilize herbs?

Herbs are not heavy feeders, so you don’t need to fertilize them as often as other plants in your garden. But they do benefit from a feeding now and then, especially when grown in containers. Herbs in containers will require more fertilizer than those growing in the garden.

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Can you use Miracle Grow on mint?

Mint will grow either in full sun or part shade, though it definitely benefits from afternoon shade in the hottest regions. … One way to defeat mint’s spreading ways is to grow it in containers filled with light, fluffy Miracle-Gro® Performance Organics® All Purpose Container Mix, which also contains compost.

What fertilizer should you use on herbs?

For herbs, usually all that is needed is a good all-natural organic fertilizer which can be mixed in with the potting mix prior to planting. If your plants loose their color or look a little peeked during the growing season, apply a good liquid fish and kelp fertilizer at half the recommended strength every few weeks.

Do Rosemary like coffee grounds?

Brewed coffee is highly acidic, so always dilute it before watering your rosemary with it. Coffee grounds can be used for the same effect. … A handful of dried grounds worked into the soil around the base of your rosemary can help raise the acidity of the soil and deliver nutrients such as nitrogen.

What should I feed my rosemary plant?

Rosemary in pots generally doesn’t require fertilizer, but you can use a dry fertilizer or a dilute solution of a water-soluble liquid fertilizer if the plant looks pale green or growth is stunted. Again, use care, as too much fertilizer may damage the plant. Too little fertilizer is always better than too much.

Can you use indoor plant food on herbs?

Fertilizing Indoor Herbs Because indoor herbs aren’t receiving nutrients from garden soil and rain, they need a little bit of a boost from fertilizer. Choose a balanced formula (such as 10-10-10 or 20-20-20) or a liquid fish emulsion.

Can I use Miracle-Gro on seedlings?

Help seeds germinate by sowing them in Miracle-Gro® Seed Starting Potting Mix. This is finer than a regular potting mix, so young roots have an easier time of poking through.

Can you use Miracle-Gro all purpose plant food on tomatoes?

Miracle-Gro is a water-soluble fertilizer produced by Scotts. … For growing tomatoes, Scotts produces a special tomato plant food with a fertilizer analysis of 18-18-21, but the all-purpose plant food can be used for tomatoes, too.

Is Miracle Grow Organic Really Organic?

Miracle-Gro Performance Organics growing media products feature a revolutionary blend of natural and organic materials and locally sourced, specially aged compost. This approach maximizes plant growth, delivering up to twice the bounty for vegetables, flowers, and herbs (versus unfed plants).

Is there an organic alternative to Miracle Grow?

Medina’s HastaGro is an organic alternative for all Miracle-Gro products. This plant food promotes larger fruits and blooms without unnatural chemicals and toxins. HastaGro also prevents salt and chemical buildup in the soil, which is crucial for long-term gardening.

Are all Miracle-Gro Products bad?

Unfortunately, deciding whether or not Miracle Gro is organic and should in turn be used in your garden is somewhat of a gray area. When you look at all of the products that Miracle Gro produces, you’ll immediately notice that a lot of them ARE full of unhealthy, inorganic chemicals.

Can you spray miracle grow on the leaves of plants?

Application. All-purpose Miracle-Gro plant food, tomato food and rose food can be applied to the foliage and allowed to soak into the soil. … For large garden areas, Miracle-Gro can be added to a hose feeder and sprayed over the entire garden area.

Are egg shells good for plants?

The calcium from eggshells is also welcome in garden soil, where it moderates soil acidity while providing nutrients for plants. Eggshells contain such an abundance of calcium that they can be used almost like lime, though you would need a lot of eggshells to make a measurable impact.

What is in Miracle-Gro All Purpose plant food?

Miracle-Gro Water Soluble All Purpose Plant Food has a ratio of 24-8-16, which means that it contains 24 percent nitrogen, 8 percent phosphorus and 16 percent potassium, as expressed in the national standard format.

Does Miracle-Gro contain arsenic?

I went to three stores and bought six popular brands of bagged soil labeled for fruits and vegetables — Miracle-Gro, SuperSoil, EarthGro, Kellogg, Sun Land and E.B. … The findings: None of the soils contained toxic levels of lead, zinc or arsenic.

Does Miracle Grow have lead?

Although some chemical fertilizers contain heavy metals such as lead, arsenic, mercury, barium, cadmium, copper, nickel and others as fillers or inert ingredients, according to the book “Fateful Harvest,” Miracle-Gro was tested along with other home fertilizers and was found to be “clean” of toxic metals.

Can I use Miracle-Gro Garden soil for indoor plants?

What is this? Since indoor plants grow in containers, garden soil isn’t a suitable option for these. Instead, the best soil for your indoor plants is Miracle-Gro Houseplant Potting Mix. With all the right ingredients for your indoor plants, the potting mix has the capacity to feed your houseplants for up to 6 months.

What soil is best for indoor herbs?

Your herbs will need ample nutrients, oxygen and moisture at the root level. Always use a quality potting mix, such as Miracle-Gro® Indoor Potting Mix, that will allow for proper airflow and drainage so your herbs can root deeply and thrive.

What kind of fertilizer does basil need?

Fertilize Properly Feed your basil plants with a good organic fertilizer every four to six weeks for indoor plants and every 2-3 weeks for outdoor. A well-balanced fertilizer with equal amounts of nitrogen, potassium, and phosphate, will help to boost leaf production.

What soil is best for herbs?

Most herbs thrive in typical garden soil, as long as it has good drainage. However, some herbs, such as rosemary, lavender and bay, are woody plants native to the Mediterranean. These herbs prefer gritty, sharply drained soil.

What soil should I use for basil?

Basil likes rich, moist, but well-drained soil with a pH of 6 to 7. Test your soil, or simply improve it by adding plenty of organic nutrients from compost, blood meal, or cottonseed meal.

What soil is best for mint?

Plant mint in full sun or part shade. It can adapt to just about any type of soil but develops the best foliage in moist, well-drained soil that has been enriched with compost.