Proper handling is necessary for you to get the most out of your planters for a long time. Basically, no plant pot is 100% frost-resistant. Not even steel, asphalt, or rocks can withstand the power of frozen water when it expands. By following a few important points, you will be able to ensure that your pots survive the winter season. We only declare hard-fired pots as winterproof, but the following must be observed in all cases.
Hard-fired, glazed pots absorb less water and are therefore more reliable than conventional pots. Planters with wider top openings are more robust than tapered ones. Reason: They allow the soil to expand upwards freely in case of frost.
Good drainage is extremely important. Ideally, you should first add a drainage layer consisting of gravel or LECA and then plant your flowers, etc. in a mixture of sand and soil. This is important because pot substrates tend to densify. Always fill the pots with a good amount of soil.
A protected environment is always recommended. Make sure you place the pots on stands and never directly on the floor or saucers as this prevents the excess water from draining. Do not expose the pots to direct sunshine, otherwise the water along the edges will thaw out during the day causing the clay to absorb excess water. This increases the risk of damages due to renewed freezing at night since the water in the frozen inner layers cannot flow out.
Following these points will ensure you get the most out of your pots for a long time.
1 Drainage hole
2 Drainage material
5 Stand (feet)