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Feed your greenery

Every day, someone catches the gardening bug – whether it’s the urge to spruce up a new home, add a touch of green to an apartment or office, or even dabble in growing a few herbs.

There’s no shortage of reasons to reconnect with nature and bring some leafy companions into our lives.

Picking up a new plant is easy enough, and keeping it alive is manageable.

But getting it to actually thrive? Well, that’s a bit of a different story.

Helping plants live their best lives takes a little extra know-how, especially when it comes to feeding them.

At the heart of plant nutrition lies the classic trio of nutrients: nitrogen (N), phosphorus (P), and potassium (K), often referred to as NPK.

These three are like the plant world’s equivalent of a balanced diet, each one playing a unique role in growth and vitality.

Let’s take a closer look at how this nutrient trio powers up your plants and how you can tweak their diet to keep them not just alive, but thriving.

PHOTO: ENVATO
PHOTO: ENVATO

UNDERSTANDING THE BASICS

When you pick up fertiliser at your local garden centre, you’ll often see an NPK ratio on the package, such as 10-10-10 or 20-10-5.

These numbers represent the percentages of nitrogen (N), phosphorus (P), and potassium (K), which play distinct roles in plant growth.

Nitrogen (N)

Essential for lush, leafy growth, nitrogen is especially important for plants grown for their foliage, like aroids (eg, monstera and philodendron).

It boosts the production of chlorophyll, enhancing the plant’s ability to photosynthesise, so if you want bigger, greener leaves, a fertiliser higher in nitrogen is ideal.

Phosphorus (P)

Phosphorus is crucial for root development and flower production, making it especially useful for flowering plants.

It also helps with fruit and seed formation, which is beneficial for vegetable growers aiming for bountiful harvests. Look for a higher phosphorus content if you’re focusing on root strength or flowering potential.

Potassium (K)

Potassium supports overall plant health, improving resistance to disease, drought, and pests.

It plays a key role in strengthening stems and aiding nutrient absorption. Potassium is especially useful for vegetables and fruits, as it helps the plant stay resilient through the growing season.

MIXING AND MATCHING RATIOS

For optimal growth, you can adjust the NPK ratio depending on your plant’s needs.

For leafy plants, use a higher nitrogen fertiliser. This will encourage vigourous, lush growth in plants grown for their foliage. Just be careful not to overdo it, as too much nitrogen can lead to excessive leaf growth at the expense of flowers and fruit.

For flowering plants, a balanced fertiliser with a bit more phosphorus can help maximise flower production. Phosphorus not only promotes blooms but also strengthens root systems, which is vital for any plant.

For fruits and vegetable, go for a balanced or slightly higher potassium blend to support sturdy growth, strong roots, and overall resilience. Potassium ensures that plants can endure fluctuating conditions and remain productive throughout the season.

APPLICATION TIPS

Even with the right NPK mix, applying fertiliser correctly can make all the difference.

Timing

Apply fertiliser during the growing season when they’re actively growing and can use the nutrients effectively.

Frequency

Fertilise once every two to four weeks during peak growth. Over-fertilising can lead to nutrient burn, which damages roots and may harm your plants. For organic fertilisers, which release nutrients slowly, you may only need to apply once a month.

Watering

Always water your plants before and after applying fertiliser. Pre-watering ensures the soil is moist and prevents root burn, while watering afterward helps distribute the nutrients.

By understanding the roles of NPK and experimenting with ratios, you can better tailor your plant care to achieve your gardening goals.

Whether you’re aiming for lush leaves, bright blooms, or bountiful harvests, a little extra nutrient know-how will set you and your plants up for success. – Wardi Wasil

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