When there is a frost, roots are unable to take up water from frozen soil and the water in the plant cells can freeze causing damage to the cell walls. Both of these situations can cause limpness brown leaves or even complete failure of the plant.
When the water in the soil freezes, it expands, and when it thaws, it can leave behind an air pocket. Plant roots are therefore not stable in the soil, and frost can penetrate the air pockets causing further damage to roots. This can be fixed by regularly firming in the soil and watering well – so that the water carries soil to the air pockets.
So, why is winter planting so popular?
2. Resting time
Because winter is the time when plants are resting – they are not experiencing the physical stress of having to produce new spring growth. This gives them a chance to establish their roots. Even in winter the soil deep down is warm enough for root development, before the hullabaloo of spring.
If you have any question about what to do with your plants in the current frosty conditions, or have any information to add to this, please do contact us. Find us on Facebook and Twitter, we would love to hear from you!