Terra cotta ceramic concrete and other moisture absorbing materials are prone to cracking when the temperature dips.
Clay pot vs ceramic pot.
Newer higher grade plastic pots rival clay in terms of variety durability and appearance.
That s because clay makes a great environment for plants that prefer moderate to dry soil as the porous makeup of clay allows moisture to move in and out of soil through the walls of the planter.
For one clay is a heavy material with very little.
Clay is the natural raw natural material actually used in making terra cotta and ceramic pots.
Clay can be thought of in terms of geological raw material which is the foundation product for the firing in the kiln which produces terra cotta and ceramics.
Small delicate pots are often favored by connoisseurs for precise pours and good balance but can look dainty and fragile to the uninitiated.
Each type of flower pot has advantages and disadvantages.
Clay pots have been used for centuries to house plants.
All clay is a ceramic material but there are other ceramic materials as well.
The debate regarding plastic versus ceramic pots is long standing.
Though they are easier to maintain than cast iron ceramic pots can chip or break more easily.
But as clay is fired at high temperatures silica inclusions align and becomes glass like.
That should give us a clue.
Some gardeners love plastic pots others will only use ceramic or clay.
Once heated fired to between 660 and 1470 f 350 and 800 c the clay is converted to ceramic and will never dissolve again.
But for some people like bonnie who s a clay pot girl their view is different.
They are also coated with chemical glazes and enamels.
At a glance you may think a ceramic pot is simply a terracotta pot with a good paint job.
Glazed ceramic pots tend to be heavy and are waterproof so hold moisture better.
Terracotta is widely available there are a large variety of shapes and sizes to choose from and the basic unglazed clay pots are not expensive.
However ceramic pots are typically glazed with a coat of lacquer that prevents the soil from drying out at the same speed as it would in an unglazed clay or terracotta planter.
The versatility availability economical and reusable nature of clay pots appeal to those with tree hugging sentiments and somewhat tight with a dollar.
Ceramic pots that are often curved in shape at the top make it difficult to repot or change the potting mix.
The later is mostly made from ceramic clay a composition of stoneware porcelain or terracotta.
The commercially popular clay pot cooking sets are nowhere close to this one.
Still clay has a lot of drawbacks.
The word terra cotta itself means baked earth in italian.