Only fertilize indoor yucca during the growth phase
Planted garden yuccas usually provide themselves with nutrients, so you only need to fertilize them with some compost in spring. However, palm lilies cultivated in pots are urgently dependent on a regular supply of nutrients and should therefore
- Repotted in fresh substrate every two to three years
- and every two weeks with liquid green plant fertilizer
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are supplied. However, fertilization is only necessary in the growth period between March and September; in winter, a room yucca should also be given a rest period.
Preferably supply the yucca with calcareous fertilizer
In addition to the usual nutrients such as nitrogen, potassium, phosphorus, magnesium and so on, a yucca primarily needs lime. So that it receives an adequate supply, you should either use a calcareous fertilizer or - much easier and cheaper - water the plant with calcareous water. Be careful, however, that the leaves are not wetted, this will leave unsightly stains.
Fertilize yucca with inexpensive home remedies
Instead of using the expensive special fertilizer from the garden center, you can of course also use the tried and tested, easily self-made fertilizers from the kitchen at home. The word has got around by now that coffee is a good plant fertilizer - but not for every plant. Coffee grounds are particularly suitable for plants that prefer a more acidic soil. The yucca is not one of them. Instead of coffee powder, however, you can use the following home remedies:
- Stinging nettle manure (let crushed nettles soak in a bucket of water for 14 days, stirring again and again)
- Cooking water from potatoes and vegetables
- Aquarium water (only from freshwater aquariums!)
Nettle manure also has the advantage that it is very effective at keeping pests away from the plants. However, the broth smells terrible and is therefore not necessarily recommended for indoor plants.
Yellow leaves can indicate nutrient deficiencies
If your yucca suddenly gets a lot of yellow leaves, this is often due to incorrect (ie too frequent) watering. Sometimes, however, there is also a lack of nutrients behind it.
Be careful when fertilizing with nitrogen: Yuccas are very vigorous and respond quickly to this growth agent. If the plant is not to touch the ceiling too quickly, it is better to fertilize sparingly.