The extremely fast-growing kiwi plant from the family of rays requires little care. It is sufficient for her if the soil is enriched with peat before planting and, for older plants, lime-free acidic fertilizer is occasionally administered.
How should you properly fertilize a kiwi plant?
Kiwi plants require nutrient- and humus-rich, slightly acidic soil. In spring, a thin layer of mature compost or mulch in the root area is recommended; mineral fertilizers (lime-free) can occasionally be used during the growing season, such as for rhododendrons. From August onwards you should no longer fertilize.
Demands on the soil
The kiwi thrives best on nutrient- and humus-rich, slightly acidic soil that should not be too wet and heavy. A pH value that is too high above 6 is not recommended. Neutral soil is also suitable. Chalky soil should be improved with a little rhododendron soil, peat or wood shavings, heavy clay soil with sand. The plants react sensitively to drought, but also to waterlogging. It is therefore important to ensure sufficient watering in midsummer and at the same time ensure good drainage.
Fertilize organically
In spring, when budding begins, an approx. 1 cm thin layer of ripe compost can be spread superficially in the root area. A layer of mulch has a positive effect on growth and fruit setting in every respect:
- it prevents the soil from drying out quickly,
- it maintains the pH value of the soil in a favorable acidic range,
- it makes regular fertilization unnecessary.
Fertilize with minerals
Some kiwi varieties are not only sensitive to lime but also to s alt. It is therefore generally advisable to use mineral fertilizers sparingly. You should start fertilizing from the third year onwards. Older and well-grown plants can then be fertilized occasionally during the growing season with mineral fertilizers, such as those used for cultivated blueberries, rhododendrons and azaleas.
Right time to fertilize
When the plants begin to sprout in early spring, lay out a layer of mature compost or a layer of mulch. Mineral fertilizers can be applied later during growth, especially on unmulched soil. Regarding frequency and quantity, follow the manufacturer's instructions on the packaging! From August onwards, if possible, you should stop fertilizing and keep the plants a little drier overall. This slows down further growth and promotes the woodiness of the shoots.
Tips & Tricks
Use peat-rich soil for sowing kiwi seeds, but the seeds should not be covered as they germinate in light.