The Primary Problem
Numerous potted plant succumbs to overzealous care; watering them whenever you pass by proves fatal. Using ice cubes to hydrate pledges slower and more deliberate hydration. But, can it really work?
The Suggested Trick
Set a couple of ice cubes on the potting mix. The concept suggests when the ice dissolves, it slowly releases water, giving the roots ample time to take up it and preventing soggy conditions.
The Detailed Method
This technique works best for compact containers and plants sensitive to overwatering, such as Phalaenopsis. Yet, most of warmth-loving foliage plants do not appreciate cold temperatures. Their roots evolved for warmth, and freezing water can damage or injure them. Ambient climate plays a big role in the technique's success: in a heated space, the ice will thaw very quickly, giving minimal benefit, whereas in a colder spot it may remain excessively, lowering the temperature of the roots and impeding water uptake. Make sure to confirm ice cubes are made from pure, clean water and avoid force them directly against the base or delicate roots.
Putting it to Test
I tested on a moth orchid. Two cubes each week kept the roots nicely damp without waterlogging. But, trying the same trick on a ornamental foliage plant led to brown edges at the foliage margins, a definite sign of cold stress.
The Final Assessment
This frozen water method might succeed for certain orchids, but it is not ideal for most tropical indoor plants and depends significantly on ambient climate. As a result, this hack is not advised; lukewarm water applied slowly is still the most dependable way to effectively water your plants.
