A gardener has warned that proper fertilisation may still be crucial in autumn, even when houseplants show signs of stunted growth.
“It’s October and we’re well on our way into autumn, but that doesn’t mean your plants have stopped growing,” explained Richard, from Sheffield Made Plants.
In a recent clip, the expert outlined several key tasks that need to be completed in October for successful growth.
While nitrogen-rich fertilisers are beneficial for foliage plants, plants with yellowing leaves, may need a magnesium boost to restore their green hues.
Spider plants may continue growing in autumn with the help of fertiliser
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“One of the biggest mistakes you can make at this time of the year is to let your plants go cold turkey and stop feeding them,” Richard cautioned.
“You may have read or seen a video saying that plants stop growing in autumn and winter, so you should stop feeding them.”
Richard warns that this is not always the case, as certain species of houseplants will continue growing well into the winter.
“This is because they’re living in our warm home and there is still some light, so they will continue growing,” he added.
This is why the houseplant expert continues feeding certain houseplants like Monstera and spider plants.
“I will just dilute the feed a little bit because they’re not growing as vigorously as in spring and summer, so just dial down the fertiliser a little bit,” he said.
Houseplants rely on fertilisers to thrive once the nutrients in their potting compost are depleted, and the supplements provide vital chemicals for healthy growth and development.
The key nutrients for houseplants are nitrogen, phosphorus and potassium, commonly referred to as NPK.
Nitrogen promotes new growth and chlorophyll production, while phosphorus supports root developments and flowering.
Potassium, on the other hand, aids stress tolerance and promotes overall plant health.
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Gardeners can choose from a variety of fertilisers, including general-purpose options and specialised products for specific plants like orchids, cacti and bonsai trees.
While most plants will enjoy the warmth of our homes as outdoor temperatures drop, they could find the heat of radiators quite stressful.
This is why Richard recommended moving the foliage to a new position when possible.
This will protect houseplants from constant changes in room temperatures as the heating goes on and off.
