How to Propagate Houseplants from Stem and Leaf Cuttings
21.10.2023 - 04:29 / irishtimes.com / Fionnuala Fallon
Why do plants get sick? The simple answer is for lots of reasons, many of them similar to the reasons why we humans do. Take, for example, poor diet. Just as it’s one of the root causes of disease, poor growth and reduced life expectancy in humans, so it is with plants.
That malnutrition could be the result of a nutrient-poor soil or of overcrowding, where there simply isn’t enough food to sustain healthy growth. Alternatively, it could be because of certain growing conditions such as drought, a waterlogged soil, a compressed soil, or a very acidic or alkaline soil making it difficult for a plant’s roots to easily access key nutrients locked in the ground. Or it could be because of a polluted soil that’s been contaminated by toxic chemicals.
Either way, the result is stunted and/or distorted, discoloured growth, reduced flowering and/or fruiting and a general lack of vigour that then leaves it vulnerable to pests and disease.
Just like humans different plants also respond in different ways to the environments they find themselves in. Ericaceous plants such as azaleas, rhododendrons, camellias and some species of magnolias, for example, naturally thrive in a damp but well-drained acidic soil with a pH lower than 7. But plant them in an alkaline soil and they’ll quickly develop a condition known as lime-induced chlorosis, where their leaves turn yellow. This yellowing of the leaves is caused by the fact that the alkaline soil in which they’re growing interferes with an ericaceous plant’s ability to absorb key plant elements, resulting in an iron deficiency that’s the horticultural version of anaemia.
But that’s not all. In exactly the same way that nutritional deficiencies in the human diet have a cascade effect in terms
How to Propagate Houseplants from Stem and Leaf Cuttings
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