Plant Pot

flowerpot, flower pot, planter,  or alternatively plant pot is a container in which flowers and other plants are cultivated and displayed. … Flowerpots are now often also made from plastic, metal, wood, stone, or sometimes biodegradable material.

Pot size

The choice of the pot will in part determine the size of the plants. Generally, plants planted in bigger pots will end up being larger; on average plants increase 40-45% in biomass for a doubling in pot volume. This will in part be due to the higher availability of nutrients and water in larger pots, but also because roots will get less pot-bound. This does not mean that all plants will thrive better in bigger pots. Especially for succulents, it is important that the soil does not stay wet for a long time, as this may cause their roots to rot. The smaller those plants are relative to the soil volume, the longer they take to use all pot water. Bonsai plants are also purposely planted in small pots, not only for aesthetics but also because the low supply of nutrients keeps the leaves smaller and the growth down. Because they are often not as drought resistant as succulents, this implies they have to be watered often.

Pot shape

Next to the size, also the shape of the pot is relevant. Water in the soil of high pots is more easily pulled down by gravitational forces than in low pots, and hence the soil does not remain wet for a long time This is relevant as plant roots of most species do not only need water, but also air (oxygen). If the potting soil is too wet plants may suffer from a lack of oxygen around the roots.

Pot material

pots that are biodegradable and may be planted directly into the soil

A third relevant aspect is a color and material the pot is made of. The soil in black pots exposed to sunlight will warm up more quickly than soil in white pots. Clay pots are permeable for water and therefore water from inside the potting soil can evaporate through the walls out of the pot. Pots that are glazed or made from plastic lose less water through evaporation. If they have no holes at the bottom either, plants may suffer from remaining too wet.

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