As of: March 9, 2024, 9:00 a.m
By: Joana Lück
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Houseplants cannot survive on water alone in the long term.
They require the addition of fertilizer.
What you should consider in winter and summer.
It's not just fruit and vegetables in the bed that need to be regularly supplied with nutrients - houseplants also need fertilizer.
But many people are unclear about how often most plants need to be fertilized.
Here you will find the most important information.
Fertilizer works wonders during the growth phase
Fertilization counteracts deficiency symptoms.
© Giorgio Fochesato/Imago
Plants don't just need water, light and oxygen to grow.
You will notice that plants look much more vital if they are fertilized regularly.
You can especially see the difference in the leaves, but the flowers also benefit from a little fertilizer.
Houseplants that are forgotten to fertilize often appear pale and grow very slowly.
Please note the following points when fertilizing:
In general, houseplants are in the dormant phase in winter, so they need less light, nutrients and water.
Growth is reduced during this time and fertilizing would send the wrong signal to the plants.
However, exceptions confirm the rule for the following flowering plants: Orchids, Christmas cactus, azaleas and cyclamen benefit from fertilizer in the cold season, according to
Plant Kölle
.
For all other houseplants, you should use fertilizer during the growth phase from March to October.
If the soil is too dry or the plant is wilting, you should generally not fertilize as this could damage the roots, warns
Hauert.com
.
You can find even more exciting garden topics in the regular newsletter from our partner 24garten.de.
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Liquid fertilizer or fertilizer sticks?
Fertilizer sticks release nutrients more slowly and sustainably.
You will need to water more overall.
Fertilizer sticks can be a better choice, especially for palm plants.
Liquid fertilizer, on the other hand, is somewhat more effective because it also reaches areas of the soil where sticks cannot reach.
If the houseplant is weakened, you should first spice it up with liquid fertilizer.
Liquid fertilizer is added to the irrigation water and is a little easier to use than fertilizer sticks.
Coffee can also be used as fertilizer.
However, keep in mind that it lowers the acidity of the soil.