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È meglio innaffiare le piante con acqua calda o fredda?

Risposte
03/08/2022
Traver Aruna

It might not come as a surprise that there’s no water plants love better than rainwater. Imagine your thirsty plants doused in droplets fallen fresh from the sky, their leaves expertly channeling the bounty down stalks and into the soil—right to the root zone where it is needed most.
But why is rainwater such a preferred water source? There is more than just one reason—in fact there are three!:

1. Rainwater is 100% soft water. Free of the salts, minerals, and chemicals that are found in municipal treated water, groundwater, and surface water, rainwater is pure hydration. Salts and chemicals build up in your soil over time and these residues are tough on plants. This effect is exaggerated in potted plants where the accumulation is more pronounced.

2. Rainwater is slightly acidic—naturally! Green gardeners know that most organically grown plants prefer soil pH levels between 5.5 and 6.5. This is on the acidic side of the neutral pH 7. Irrigate with rainwater and help keep your soil pH in perfect balance ongoingly!

3. Stored rainwater contains some organic matter. If collected from your rooftop, rainwater contains traces of organic material. While the water is very clean and should run clear, it has been exposed to anything on your roof. We’re not talking about chunks (these get pre-filtered out on their way into properly-designed rain barrels)–we’re just talking about contact exposure to leaf litter, pollen, bird droppings and the like (which perhaps not surprisingly are great for your plants). It’s like a light application of fertilizer every time you water!

I always thought I had a knack for killing house plants. Then I learned about watering with rainwater. Rainwater straight from my rain barrels into a watering can is what I use for my potted plants and nursery starts. A gravity fed drip line allows me to apply rainwater directly to my in-ground garden with no effort at all. And what a difference it makes. Suddenly I have a green thumb… but (shhh, don’t tell!) the secret is the water.

Plant health is just one of the many benefits of harvesting rainwater. Click here for a handful of great reasons to collect the rain that falls on your roof!

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Si possono innaffiare le piante con acqua di limone? :: Qual è il meglio per una pianta: Acqua di rubinetto o acqua demineralizzata (< 5µS/cm)?
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