Potting soil and potting mix are both usually used in horticulture and container planting , but they have some authoritative differences . As a horticulture and landscaping expert , I can explain these differences to help you understand which one is best for your needs .

pot grease , as the name suggest , is a stain - base medium that is used to grow flora in container . It typically contains a intermixture of soil , constitutive matter , such as compost or peat moss , and sometimes sandpaper or perlite for better drain . However , it is important to observe that not all potting soils turn back actual grunge . Some commercial potting filth are labeled as “ soilless ” because they are made in the first place of organic matter and do not contain any natural dirt .

On the other hand , potting mixture is strictly a soilless medium and does not contain any instinctive soil . It is usually compose of a combining of constitutional affair , such as peat moss or coconut coir , and inorganic textile like perlite or vermiculite . These component are specifically chosen for their ability to hold back wet , provide expert drainage , and kick upstairs root growth .

One of the main advantages of using potting intermixture over pot dirt is its power to provide a more consistent and controlled environment for plant life growth . Because it is soilless , potting mix tends to be lighter in weight and less compact than potting soil . This countenance for good aeration and etymon development , which is specially beneficial for industrial plant that command well - draining atmospheric condition .

Potting mix also has the advantage of being sterile , intend it is free from pathogens , weed seeds , and pest that can be present in innate territory . This can help prevent diseases and other problem that can rise from using polluted soil . to boot , potting mix is often formulated with bestow nutrient to support plant life outgrowth , reducing the motive for additional dressing .

However , it is of import to note that potting mix may ask more frequent watering and fertilisation compared to potting soil . Because it is soilless , it does not have the born nutrient - obligate capability of soil . Therefore , even feeding with liquid or dull - release fertilizers is often necessary to provide plant with the necessary food .

In my personal experience , I have found that potting mix is peculiarly utile for produce plants that have specific soil requirements , such as acid - know plants like azaleas or blueberries . The ability to control the pH and nutrient content of the potting mixture allows for optimal plant growth and wellness .

The main divergence between potting soil and potting mix lies in their composing . Potting soil may or may not moderate land , while potting mix is rigorously a soilless medium . pot mix offers honorable drainage , aeration , and master over nutritious content , make it a popular option for container gardening . However , it may require more frequent watering and fecundation compared to pot soil . Ultimately , the choice between potting soil and potting mixing depends on the specific need of your industrial plant and your gardening preference .

Caroline Bates