How did the rainwater manage?

Is rainwater better than tap water for watering?


Is there a difference between rainwater and tap water? Gardener Johannes Käfer explains how irrigation water can change the breeding ground for plants.

In principle, the question of what the best irrigation water is is quickly answered: very clearly Rainwater! This quasi-distilled falls from the sky as condensed water vapor hardly changes the acidity and nutrient concentration of the soilbecause it contains few dissolved ingredients. An ideal starting point for casting.

tap water, which gushes from the depths of the earth and contains many salts and minerals dissolved from the rock, is essential heavier diet for the floors, but therefore not automatically "harmful". You just have to pay attention to which plants you water with it.

Tap water is heavy food for house plants

This is between Houseplants and to distinguish between garden plants. The former, i.e. the houseplants, mostly come from distant countries with tropical or subtropical climates. The soils there are often lime-free, poor in nutrients and slightly acidic. If you water indoor plants with tap water, a white lime and salt coating quickly forms on the earth, which is often mistaken for mold. Ultimately, the Earth too enriched with dissolved minerals, the absorption of nutrients is blocked and the plants practically starve when the table is set.

Rainwater hardly changes the acidity of the soil because it falls from the sky in a distilled state.

Garden plants however, tolerate more, they are usually less sensitive and get along very well with the mineral tap water. Mainly because nature regularly dilutes the salt content in the soil with the rain and flushes the salts out into deeper layers.

Only at Bog bed you should be careful, this is recommended to be poured exclusively with rainwater. Because rhododendrons and Co. do not tolerate lime at all.

Stale water is softer and more tolerable

Because not everyone has rainwater: For Plants sensitive to lime you can also use stale water. After a few days, some of the lime sinters and the water becomes softer.

Apropos: Spring water from primary rock is also referred to as soft water because it has no lime and less minerals. The reason for this is the hardness of the primary rock. The water can wash out far fewer minerals than with softer limestone.

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