How long does vermiculite last?

I heard that vermiculite last for 2 years, until it decomposes, then you have to add it again. However perlite lasts for a long time. Also vermiculite, could have some asbestos, or, asbestos like material/fine dust that could cause some breathing problem down the road.
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Does vermiculite deteriorate?

Vermiculite does not break down or decompose when it's used in potting soil. That means vermiculite is a permanent way to amend and improve your soil.
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Does vermiculite expire?

Also, if you don't want to use soil to grow your indoor plants, vermiculite is a fantastic medium. By adding composted pine bark or peat with the vermiculite, the roots of your houseplant can take hold and grow. Given that it's a mineral, vermiculite doesn't expire.
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What are the disadvantages of vermiculite?

Disadvantages of Vermiculite:
  • Stays too wet.
  • Bacteria and fungus thrive in the moist environment, and negatively affect any plants grown in it.
  • Vermiculite is often expensive and difficult to find.
  • Unsustainable.
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What happens if vermiculite gets wet?

Vermiculite insluation itself does not burn: it is non-combustible, though contaminants and debris, if mixed with any insulating material at enough volume, might burn. When wet, vermiculite can hold a lot of water, as much as 220-325% by weight, and as much as 20-50% by volume.
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Benefits of Vermiculite - Garden Quickie Episode 48



Is there still asbestos in vermiculite?

Vermiculite and gardening use

An EPA study showed some vermiculite products contain low levels of asbestos. Asbestos is found primarily in the unmixed vermiculite product although some was found in pre-mixed potting soils. For consumers using vermiculite on an infrequent basis the health risk is low.
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Does vermiculite dry out?

Because vermiculite holds moisture better than perlite, it helps keep seeds from drying out during germination. You're repotting outdoor container plants. Potted plants tend to dry out faster outside, especially if they're in porous containers like terra cotta or fabric pots.
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What grows well in vermiculite?

Due to their different moisture retention qualities, vermiculite is better suited to moisture-loving plants such as ferns that enjoy consistent moisture, while perlite would be more suitable for succulents and other plants that prefer a drier growing medium.
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Should I add vermiculite to my soil?

Using plenty of vermiculite, or even straight vermiculite, can prevent bacterial and fungal problems such as damping off and root rot. It is commonly used for seed germination and in seed germination mixes. Improves drainage and lightens the soil in the garden, in raised beds, or in pots.
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Does vermiculite hold water?

Both perlite and vermiculite have neutral pH levels and retain water well. Vermiculite, however, has a reputation for holding a greater amount of water than perlite does. Therefore, perlite would be a better choice for desert climates where succulents grow or for plants like rhododendrons that require less moisture.
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What can I use instead of vermiculite?

Alternatives to Vermiculite
  • Peat. Peat (also known as peat moss) is light and holds moisture well but not does not stay soggy. ...
  • Coir. Coir is coconut dust. ...
  • Perlite. Like vermiculite, perlite is an inorganic matter added to the garden to improve water drainage and permeability. ...
  • Sawdust. ...
  • Shredded Hardwood Bark or Wood Chips.
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Can you reuse vermiculite?

Reusable year after year since it doesn't decompose.
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How long does potting mix last?

Unused potting soil lasts roughly six months before it degrades in quality, while used potting soil should be replaced every year or two.
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How long does vermiculite last in soil?

I heard that vermiculite last for 2 years, until it decomposes, then you have to add it again. However perlite lasts for a long time. Also vermiculite, could have some asbestos, or, asbestos like material/fine dust that could cause some breathing problem down the road.
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Which is best vermiculite or perlite?

The main difference between the two, however, is that, while perlite for plants can suck up four times its weight in water, vermiculite sponges up to sixteen times its weight in water. So, vermiculite is more effective at gathering and redistributing moisture than perlite is.
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Is it safe to garden with vermiculite?

Is Vermiculite Safe to Use in Organic Gardening? Vermiculite is a natural substance that is odorless, non-toxic, and does not deteriorate over time, making it an excellent choice for organic farming.
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Can I mix vermiculite with compost?

Vermiculite helps to aerate soil while simultaneously retaining water and nutrients, which it then releases over time. Vermiculite is therefore useful in seed sowing and propagation. It can also be added to house plant compost.
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Is vermiculite good for clay soil?

Vermiculite. Vermiculite is often recommended as a soil amendment since it holds and releases water. It can break up clay soil, but it will decompose. A better choice for clay soil is expanded shale.
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Do worms like vermiculite?

Combine two or three types of bedding to create air space and allow for movement of the worms. Include a handful of vermiculite or soil with the bedding to give the worms grit to aid their digestion.
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Is vermiculite good for vegetable garden?

The answer is yes! Vermiculite is a great way to start seeds with or without mixing with potting soil. Vermiculite is particularly good for a faster germination when starting seeds.
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Do tomatoes need vermiculite?

There are several different ways to sow tomatoes. Sowing in vermiculite works well and gives a high seed turnout. Fill a container with 2 cm vermiculite (this can also be a fine sowing soil, but germination is often not so good) and sow the tomato seeds.
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Is vermiculite good for grass?

Vermiculite is highly permeable and also retains a lot of water. It improves a soil's aeration, drainage and water retention. It is especially helpful when you add it to heavy clay soils with poor drainage before planting grass. Vermiculite also improves the water retention of sandy soils that dry out too quickly.
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Can I use sand instead of vermiculite?

There is no reason to avoid using sand, unless you will be moving the containers frequently. Sand adds a considerable amount of weight but IMO does a better job at aeration than perlite/vermiculite. Perlite also tends to float to the top and grow nasty green algae/mold. I switched over to sand a few years ago.
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Can I substitute perlite for vermiculite?

Perlite and vermiculite are both used to improve moisture retention and aeration in soil. They are used in a similar manner, but they are not interchangeable.
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Is vermiculite toxic?

Vermiculite itself is safe to use; there is no evidence that any acute or chronic toxicity or carcinogenicity exists from long-term exposure to vermiculite.
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