As a gardening enthusiast, I've always loved the various types of plant pots available on the market. They come in a plethora of materials, such as plastic, metal, wood, and of course, clay and terracotta. But what exactly is the difference between clay and terracotta plant pots? That's the question I'll be exploring in this blog post.
Whether you're a seasoned gardener or just starting your green journey, understanding the nuances of these materials will help you make informed decisions when choosing plant pots. So, let's dive in and discover the difference between clay and terracotta plant pots!
Clay vs terracotta plant pots - what's the difference?
Terracotta is clay that has been moulded and fired, often using organic clay. The brown-orange hue often associated with terracotta is typically from earthenware clay, and low-temperature firing makes the surface porous and permeable.
Detailed: Clay vs terracotta plant pots
When it comes to clay and terracotta plant pots, the main difference lies in the firing process. Terracotta is a type of clay that undergoes a firing process, which gives it its distinct reddish-brown hue and porous texture. On the other hand, clay pots (such as stoneware or porcelain) can be made from various types of clay, and may be left unglazed or glazed with a variety of finishes.
Because terracotta is fired at a lower temperature than other types of ceramics, it remains porous and allows for better air circulation and water evaporation. This makes terracotta plant pots ideal for plants that require good drainage and don't like to sit in damp soil. Clay pots, depending on the type of clay used and whether they are glazed or unglazed, can have varying levels of porosity and drainage capabilities.
Another noteworthy difference is the weight and durability of the pots. Terracotta pots are generally heavier and more brittle than clay pots, making them prone to chipping or cracking. Clay pots, especially those made from stoneware or porcelain clays, can be more durable and lightweight, making them a better choice for gardeners who need to move their pots around frequently.
Types of Clay Pots
Here are some of the types of clay pots that are out there. It's not an exhaustive list, but does provide some background as to how terracotta compares to clay.
-
Stoneware: Stoneware is a type of pottery that is fired at high temperatures, resulting in a dense and non-porous material that can resist liquids.
-
Porcelain: Porcelain is a type of ceramic material that is made by heating a specific type of clay, known as kaolin, to very high temperatures. The resulting material is hard, dense, and often translucent, with a white or off-white colour. Porcelain is known for its strength, durability, and beauty.
-
Terracotta: Terracotta is a type of clay-based ceramic material that is typically reddish-brown in colour. It is made by moulding and firing clay at relatively low temperatures, resulting in a porous and slightly brittle material that is not very water-resistant.
Pros & cons of terracotta plant pots
Pros
-
Great drainage: As mentioned earlier, terracotta plant pots provide excellent drainage due to their porous nature. This can be particularly beneficial for plants that require well-draining soil or are prone to root rot. In addition, the evaporation of water from the pot can help prevent the growth of mould and mildew on the surface of the soil.
-
Easier bottom watering: Since terracotta absorbs water, it makes bottom watering more efficient, getting more water to your plants.
-
Temperature regulation: The thick walls of terracotta pots can help insulate plant roots from extreme temperature fluctuations, keeping them cool in the summer and warm in the winter.
-
Aesthetic appeal: The rustic charm of terracotta pots can add a touch of warmth and character to any garden setting. Their earthy tones and natural texture can complement a wide array of garden styles and plant types.
Cons
-
Brittle: As mentioned earlier, terracotta plant pots provide excellent drainage due to their porous nature. This can be particularly beneficial for plants that require well-draining soil or are prone to root rot. In addition, the evaporation of water from the pot can help prevent the growth of mould and mildew on the surface of the soil.
-
Difficult to clean: The texture of terracotta makes them quite difficult to clean fully. Efflorescence, a white, powdery residue, can develop on terracotta pots due to salts in the soil and water. Whilst it is easy to give the pots a quick tidy up, it's very hard to return the pot to its original aesthetic.
How to care for terracotta plant pots
While terracotta plant pots offer numerous benefits, they do require some care to ensure their longevity. Here are some tips to help you maintain your terracotta pots:
-
Protect from frost: Terracotta pots can be susceptible to frost damage, as the water absorbed by the porous material can freeze and cause the pot to crack. To prevent this, either bring your pots indoors during freezing temperatures or wrap them in insulating material, such as bubble wrap or burlap.
-
Clean regularly: Over time, terracotta pots can develop a white, powdery residue called efflorescence, which is caused by the salts in the soil and water. To remove this, simply scrub the pot with a stiff brush and water. If stubborn stains persist, you can use a mild solution of vinegar and water.
-
Avoid drastic temperature changes: Sudden temperature changes can cause terracotta pots to crack. To avoid this, try to gradually acclimate your pots to temperature changes, such as moving them from a shady spot to a sunny spot over the course of a few days.
Conclusion
In conclusion, the main difference between clay and terracotta plant pots lies in the firing process, porosity, and durability of the materials. While both types of pots offer benefits for plants and gardeners alike, terracotta pots are particularly well-suited for plants that require excellent drainage, temperature regulation, and a rustic aesthetic.