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The Daily Insight

Do you have to fertilize indoor plants

Author

Robert Spencer

Published Apr 13, 2026

General purpose, indoor plant fertilizers are fine for most houseplants. They contain three important macronutrients: nitrogen (N) for foliage growth, phosphorous (P) to promote roots and potassium (K) for healthy blooms. Some fertilizers also contain micronutrients like manganese, boron and magnesium.

Do I need to fertilize my indoor plants?

Too many people overlook the importance of fertilizing indoor plants. However, proper feedings are essential to grow healthy, beautiful plants. … After about two months, though, the plant will have consumed the nutrients in the soil, so you’ll have to fertilize if you want continued, healthy growth.

How often should you fertilize indoor house plants?

Houseplant fertilizers are available in liquid, crystalline, granular, spike, and tablet forms. Frequency of application depends upon the product and varies from every 2 weeks to once every 3 to 4 months. Carefully read and follow label directions. Do not fertilize houseplants during the winter months.

What happens if you don't fertilize your houseplants?

Most of the time we see nutritional deficiencies when the plant is actively growing in the nursery, when it needs more food or does not have enough of a particular element, such as iron, leaves may turn pale. … Growers “should” remove most of the plant fertilizer off the top of the soil before shipping.

What kind of fertilizer is best for indoor plants?

For most indoor plants, a balanced plant fertilizer is ideal. For example, 7-9-5 NPK is ideal for small potted flowering plants such as African violets or begonias. However, other types of flowering houseplants need a 1-3-1 combination. Green, leafy tropical indoor plants need a higher nitrogen ratio.

How do you fertilize indoor plants naturally?

How do you fertilize houseplants naturally? Natural organic material can be used to provide nutrients to fertilize your houseplants naturally. Household waste such as coffee grounds, egg shells, banana peels and green tea are suitable, or commercial natural houseplant fertilizer can be used.

When should I start fertilizing my indoor plants?

Tip 1: Spring is the best time to start fertilizing plants because that’s when they are starting to actively grow. Plants that grow faster, like begonias, should be fertilized more often than plants that grow slowly, like a cactus, or are dormant, i.e., all plants in winter.

Do all plants need fertilizer?

Not! Fertilizers, organic or mineral, are not plant food. All plants need nutrients to grow and most are able to make their own food through the process of photosynthesis. Plants need key nutrients, six of which are important and three of those essential.

How do you feed indoor plants?

In general, the majority of houseplants should be fed every second watering during the growing season (spring and summer), which is probably every 10 to 14 days. In autumn and winter feed every fourth watering as houseplants will require fewer nutrients. A good way to feed houseplants is with a liquid concentrate feed.

How often should indoor plants be watered?

How often should you water houseplants? Most houseplants need watered every 1-3 weeks. You should monitor your houseplants and water when they need it, rather than on a schedule. Frequency of watering will depend on the size and type of plant, size and type of pot, temperature, humidity and rate of growth.

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How do you keep indoor plants healthy?

  1. Match plants with light conditions. Houseplants vary in their light requirements. …
  2. Choose the right container. …
  3. Use good-quality potting soil. …
  4. Water properly. …
  5. Fertilize and control pests. …
  6. Increase humidity and prevent drafts. …
  7. Keep foliage clean.

Why do indoor plants leaves turn brown?

Light – One very common problem with indoor plants is a lack of light. If your plant isn’t getting enough light, its leaves will start to turn brown. … This usually causes the leaves to brown just at the tips. Try misting your plant with water or setting the pot in a dish of small stones and water.

What plants should not be fertilized?

Perennials that do best with no supplement fertilizer include butterfly weed (Asclepias tuberosa), false indigo (Baptisia australis), asters, pinks (Dianthus spp.), rock roses (Helianthemum spp.), sea holly (Eryngium spp.), bee balm (Monarda didyma), speedwell (Veronica spp.), coneflowers (Echinacea spp.

How do you make indoor plants greener?

  1. “Early Show” contributor Ahmed Hassan, a landscape technician and host of DIY Network’s “Yard Crashers,” shared these tips on the broadcast for keeping your house plants looking healthy and vibrant:
  2. Use Proper Soil.
  3. Give Plants Plenty of Water.
  4. Remove Excess Water.

How do you fertilize a potted plant?

Applying liquid fertilizer to potted plants – Mix the recommended amount of liquid fertilizer and water in a watering can. Then simply pour the mix into the soil as if you’re watering the plant. You can also put some into a spray bottle, and spray it on the leaves for foliar feeding.

Why are the leaves on my houseplants turning yellow?

Overwatering or underwatering are the most common culprits when a plant’s leaves turn yellow. … Before they drop, though, the leaves will typically turn yellow. If the soil is dry and this is happening, make it a point to get the plant on a regular watering schedule. Too much water can be just as damaging to leaves.

Can you fertilize indoor plants in March?

This means putting away the fertilizer from October until the spring. March is a good time to start fertilizing, and most houseplants will benefit from an application once every 1 – 3 months depending on which formulation is being used.

Can you put coffee grounds on indoor plants?

You can use coffee grounds for your houseplants — and gardening experts say you can compost them or add the grounds directly to the soil.

How do I fertilize my plants at home?

Use an old 1-gallon plastic jug or watering can to mix the natural fertilizer. Add 1.5 tablespoons of Epsom salt, 1.5 teaspoons of baking soda, and just under half a teaspoon of ammonia. Once you’ve added these to your empty jug, fill up the rest of the container with water. Shake well to mix.

How often do you need to fertilize plants?

It’s typically recommended to apply fertilizer in clay soil about every four to six weeks after planting. For plants growing in organic soil that’s rich with organic matter, only fertilize a little bit every three to four weeks.

Is plant food the same as fertilizer?

The main difference is that plant food is a naturally occurring type of sustenance while fertilizer is not. Plants make their own food for survival. Fertilizer delivers nutrients for survival as well, but commercially, not naturally. Plant food is not the same thing as fertilizer and vice-versa.

Do indoor plants need sunlight?

Light. As with watering, every plant has different light requirements. Many plants prefer direct sunlight, but this may be hard to get inside a house. Placing a plant in a window might offer enough light, but some houseplants will need supplementing from a grow light (see Lighting Indoor Houseplants).

What happens if you don't use fertilizer?

Without fertilizers, nature struggles to replenish the nutrients in the soil. When crops are harvested, important nutrients are removed from the soil, because they follow the crop and end up at the dinner table. If the soil is not replenished with nutrients through fertilizing, crop yields will deteriorate over time.

Is fertilizer really necessary?

Plants need to be fertilized because most soil does not provide the essential nutrients required for optimum growth. … It took nutrients from the soil to build those plant tissues. By fertilizing your garden, you replenish lost nutrients and ensure that this year’s plants have the food they need to flourish.

When should you not fertilize?

The worst time to fertilize plants is at the end of their growing season. Trees, for example, begin to wake up and grow in early spring, and typically are fertilized once in February or March. Most shrubs make active growth in the spring and early summer, so we tend to fertilize them once around March or April.

How do you tell if a plant is overwatered?

  1. Lower leaves are yellow.
  2. Plant looks wilted.
  3. Roots will be rotting or stunted.
  4. No new growth.
  5. Young leaves will turn brown.
  6. Soil will appear green (which is algae)

What time of day should you water indoor plants?

It’s usually better to water houseplants in the morning. The consensus is that the morning is the best time to give your indoor plants a drink—especially during the hot summer months. This will allow the plant to absorb the water before it gets too hot (which can cause the water to evaporate too quickly) and dark.

Should I cut the brown tips of my plants?

Should you cut off dying leaves? Yes. Remove brown and dying leaves from your house plants as soon as possible, but only if they’re more than 50 percent damaged. Cutting off these leaves allows the remaining healthy foliage to receive more nutrients and improves the plant’s appearance.

Does spraying water on plant leaves help?

Spraying plant leaves down with water removes dust and dirt, and it can rinse away insect pests and fungal spores. Although a spray of water benefits the plant’s health, foliage that remains wet for an extended period is prone to the diseases that require a moist environment to grow.

Should I spray my indoor plants with water?

“If you don’t give them moisture, their leaves will dry out. If you want new foliage and growth, you need to mist them.” Many houseplants come from subtropical and tropical regions and need a “relative humidity of at least 40 percent,” according to “Reader’s Digest Success With House Plants.”

What kind of indoor plants don't need sunlight?

  • Chinese Evergreen (Aglaonema) …
  • Cast Iron Plant (Aspidistra elatior) …
  • Dracaena (Dracaena) …
  • Dumb Cane (Dieffenbachia) …
  • English Ivy (Hedera helix) …
  • Maidenhair Fern (Adiantum) …
  • Parlor Palm (Chamaedorea elegans) …
  • Peace Lily (Spathiphyllum)