DIY Builds
Photo by Greta Hoffman Pexels Logo Photo: Greta Hoffman

Why does garden soil say not for containers?

Garden soils are typically intended for use in the ground and contain minerals and organic matter. They are not a good choice for containers because the soil can quickly become compacted and waterlogged, reducing air space around the roots. This can lead to poor or stunted growth.

How do you seal crafting branches?
How do you seal crafting branches?

Clean the branch with a dry towel to remove any sanding dust. Coat the branch in your chosen finish – Minwax Polycrylic Protective Spray, Clear...

Read More »
How do you make a shed base with uneven ground?
How do you make a shed base with uneven ground?

From experience, the simplest way to build shed bases on uneven ground it to use a foundation of blocks, ideally concrete. This way, to compensate...

Read More »
Can I build my own shed?
Can I build my own shed?

Yes, with the right plans you can build your dream shed.

Learn More »

Going to the garden center to purchase potting mix can be a little overwhelming. With many types of products to choose from, it can be difficult to know which one will be best for the plants you intend to grow. Some are meant to be added to the garden or used to fill raised beds, while others are suitable for growing in containers or pots. Garden soils are typically intended for use in the ground and contain minerals and organic matter. They are not a good choice for containers because the soil can quickly become compacted and waterlogged, reducing air space around the roots. This can lead to poor or stunted growth. Garden soils can also contain weed seeds, insects and diseases if they haven’t been pasteurized. Potting mixes (also called soilless mixes), on the other hand, are specifically made for growing potted plants. They are lightweight, retain moisture, and they supply plenty of air space around the roots. Air space is actually one of the most critical aspects of potting mix. If the roots don’t have enough air, a plant usually doesn’t survive. Although the ingredients tend to vary, good mixes always contain an organic component (peat moss, compost, bark), vermiculite or perlite (to help retain moisture), sand, nutrients and limestone. Some contain fertilizer or moisture-retaining treatments, usually indicated on the label. Knowing what is in the potting mix is key to determining whether it will be a good match for the plants you are trying to grow. General potting mixes will work fine for most annuals and vegetables grown in containers, but they may hold too much moisture for orchids, succulents or cacti. Specialty mixes are sold for these plants and, while not absolutely necessary, can provide benefits.

Potting Mix Ingredients

Peat is a special type of organic material that comes from decomposed plants in bogs. Most peat comes from sphagnum moss, hence it’s other common name, “peat moss.” Peat is a major component of almost all potting mixes because it retains moisture without becoming waterlogged, is lightweight, and does not become easily compressed. Compost is occasionally included in potting mix for added nutrients. It can reduce air space in the soil and should be used sparingly for potted plants. Compost should make up no more than 1/3 of a potting mix. Bark that has been ground and partially composted is often incorporated into less expensive potting mixes in place of peat. Bark provides good aeration but dries out more quickly than peat, requiring more frequent watering. Coir is a fibrous material from coconut husks that is sometimes used in place of peat. It is similar to peat in that it retains water without becoming soggy.

How much does it cost to convert a shed to a house?
How much does it cost to convert a shed to a house?

How Much Does It Cost to Make a Shed Livable? Converting your shed into a living space can run from $1,500 up to $30,000, depending on the...

Read More »
How do you secure a floating dock to land?
How do you secure a floating dock to land?

Gangways are the best way to attach your floating dock to the shore or a connecting ramp. A gangway is a long platform, often with handrails, that...

Read More »
Are shed plans easy to follow?
Are shed plans easy to follow?

These are! They guide you every step of the way to complete your dream shed.

Learn More »

Vermiculite is the product of heating mica chips. It is a gray, spongy material that increases water retention in mixes. It also holds on to nutrients and thus keeps fertilizer available for the plant roots for a longer period of time. Perlite is a white volcanic rock that is reminiscent of Styrofoam. It is light weight and porous and is used to improve the drainage and aeration of potting mix. Sand is another common component of potting mixes. It can improve drainage and is often added in large quantities to mixes intended for cacti and succulents. Fertilizer is sometimes added to potting mixes, usually in a slow-release form that breaks down gradually over time when it comes in contact with water. Thus, small amounts of nutrients are released over the course of weeks. Eventually this initial source of nutrients will be exhausted, and potted plants will require additional fertilizer. Moisture retaining treatments come with some potting mixes and are meant to reduce how often you need to water. These “hydrogels” or “water storing crystals” are polymers that have the ability to absorb large amounts of moisture and slowly release it as the soil dries. Their effectiveness diminishes over time, and eventually the potting mix dries out as any other. Potting mixes with moisture retaining treatments are suitable for potted annuals but are a poor choice for succulents or other drought tolerant plants. The best potting mix for potted plants may vary slightly depending on what you are trying to grow. However, all quality mixes will be lightweight, fluffy and dry, and contain peat, coir, bark, perlite, or vermiculite. Avoid products that are compost-based or seem overly heavy – these won’t provide enough air space for roots. When in doubt, choose a peat-based general purpose mix, or make your own potting mix by combining the ingredients above. Many potting mix recipes exist online, and you can adjust the ratios of the added materials according to the needs of the plants you’re growing.

Can you legally sleep in a shed?
Can you legally sleep in a shed?

To sleep in a shed or garden room, it must comply with Building Regulations. These control the quality of the building's structure and ensure it is...

Read More »
Do I have to cut my hedge on my Neighbours side?
Do I have to cut my hedge on my Neighbours side?

There is no law that compels your neighbour to cut their side of the hedge should they not want or be able to. If the boundary is in the middle of...

Read More »
These are the Best Shed Plans!
These are the Best Shed Plans!

Comprehensive and Intuitive to follow. Build That Shed!

Learn More »
What is the best way to insulate a metal building?
What is the best way to insulate a metal building?

As the universal way to insulate a steel building, foam or “rigid boards” are ideal for practically any type of climate. With several available...

Read More »
Are plastic sheds easy to break into?
Are plastic sheds easy to break into?

Plastic sheds are just not as secure as wooden or metal ones and can easily be broken into, making them not the safest place to store high priced...

Read More »