Do Spider Plants Need Fertilizers? (Answered)

by Alex Kountry
Updated on

Spider plants need fertilizers to grow and mature.

As we all know, fertilizers are not only beneficial to plants, they are important and needed as well.

Spider plants do not need fertilizer applications in excess as they are able to draw the needed nutrients from the soil.

You should use the right fertilizer for your plants and not over apply as this could lead to browning of the spider plants’ tips.

Today, we will be discussing the benefits of fertilizers for plants, how often you should fertilize your spider plant and the best fertilizer for the species amongst other things. 

Do Spider Plants Need Fertilizers?

Do Spider Plants Need Fertilizers

Spider plants need fertilizers although they do not require as much as some other houseplants. Fertilizer should be administered sparingly to spider plants. This is because over-fertilizing will result in brown leaf tips and chemically contaminated water.

Feeding your spider plant with granular or diluted water-soluble liquid fertilizers are both wonderful options.

However, these plants have a relatively low nutrient demand, thus giving too much can be more detrimental than providing too little.

As previously stated, spider plants do not require a substantial amount of fertilizer. The precise amount varies according to the age of the soil and the plant itself.

Consider a spider plant that is repotted annually. 

It will likely not require fertilizer, as the natural nutrition levels of the potting soil are not totally depleted and are sufficient for the plant.

Before applying fertilizer, you should also examine the plant’s sensitivity to particular substances. 

Spiderlings are extremely delicate and burn readily when exposed to fertilizer, but older plants have a limited tolerance for fluoride and boron.

The frequency of feedings is also highly dependent on the type and concentration of fertilizer used.  

In general, spider plants should not be fertilized throughout the winter and should be fed every two to three weeks, depending on the type of fertilizer used.

When in doubt, either withhold feeding until the plant exhibits signs of hunger or utilize test strips from your local garden center to determine the nutrient levels.

Here is an article I wrote about growing spider plants in an aquarium

What Are The Benefits of Fertilizers?

Fertilizers are important nutrient-adding substances which farmers and gardeners use to improve plant/crop yield and appearance.

Most fertilizers contain three essential macronutrients which are nitrogen, potassium and phosphorus, hence the term Npk. 

Fertilizers can be added to both plants cultivated on the ground and house plants grown in pots.

It is more important for houseplants as their roots have limited space to grow. Once nutrients in the soil are gone, they cannot reach out to find more unlike those in the grow.

Some of the major benefits of fertilizers to plants include: 

  • Pest Resistance

Fertilizers boost the pest resistance of plants. This has decreased their dependency on insecticides and herbicides, resulting in crops that are healthier. 

  • Water Retention and Root Depth Fertilizers boost the ability of plants to retain water and increase root depth.
  • Provides Strength

Straws and stalks of plants are strengthened by the potassium content of fertilizers.

  • Rapid Growth 

Phosphorus in fertilizers facilitates the rapid growth of plant roots and seed production. Nitrogen in fertilizers stimulates plant growth, which is defined by the green color of the plants.

How Often Should I Fertilize My Spider Plant?

Spider Plants thrive from a regular fertilizing regimen.

All species of spider plants require fertilizer to experience the same growth cycle they would in their natural environment. 

Fertilization enables them to extract the nutrients required for spring and summer growth. However, over fertilizing might cause the leaves to turn brown and crunchy. 

In the spring and summer, you may fertilize the plant once or twice every month.

Apply an all-purpose or slow-release fertilizer to houseplants, but refrain from feeding throughout the winter.

Spider plants should no longer be fertilized after the temperature drops in October.

This will ensure that the plant enters and maintains dormancy, allowing it to rest throughout the winter.

Also check out this article I wrote on why do spider plants like milk

What’s The Best Fertilizer for Spider Plants?

Once every one to two months spider plants do best with a balanced, all-purpose houseplant fertilizer.

Therefore, you should buy houseplant food (fertilizer) with a balanced NPK value, such as 15-15-15.

Most plants thrive with a particular ratio of these various nutrients.

A balanced fertilizer with the same number for each nutrient, such as 20-20-20 or 15-15-15, is ideal for a Spider Plant.

Water-soluble fertilizers are another useful choice. The plant nourishment known as water-soluble fertilizer dissolves in water.

When this form of fertilizer is applied to soil, plant roots have immediate access to nutrients.

Tips on Fertilizing Spider Plants

Fertilizing spider plants is essential because it will satisfy all of the plant’s nutrient requirements. Spider plants require supplements for optimal development and nutrient uptake.

Follow the outlined tips to give your plants the best fertilizer experience:

  • When purchasing fertilizer for your spider plant go for an all-purpose fertilizer for garden plants or houseplants. Typically, the NPK levels of these fertilizers will be 20-20-20, 15-15-15, or something comparable. 
  • They are available in both liquid and granular forms. The liquid formulations are simpler to use and diffuse faster on spider plants.
  • In order to avoid over-fertilization and to stop fertilizing during the winter, it is sometimes suggested that you use half the recommended dose.
  • You can as well use homemade fertilizers as you won’t experience the problem of over-fertilization with them. These sorts of fertilizers include organic compost, worms, well-fermented guano, and coffee grinds, among others.
  • The frequency of application depends on the sort of fertilizer you are using. A slow-release fertilizer might only need to be applied once or twice each year. Other types might require more applications. This can often be between 6 and 8 weeks.
  • Evenly distribute the fertilizer in the pot as a concentration of nutrients at a single point might harm the plant. 
  • Always remember to water generously, as this will improve the uniformity of the fertilizer.

How Often Should I Water Spider Plants?

Spider plant is a plant that can tolerate neglect and not being watered, but this does not imply that it should not be watered correctly.

Most people water their spider plants once a week, however this can vary depending on the plant species and the season. 

Once you have watered a plant, you must wait until the soil is completely dry before watering again. Do not simply water twice weekly.

If your soil retains a lot of water or if your plant is not growing as quickly as mine, you may not need to water it as frequently.

The finger test is suggested as a method for determining when to water. Prod the top inch of the soil in the pot with your finger.

Wait a few days and then try again if the soil is slightly moist. 

If the soil is almost entirely dry to the touch, you should water your plant. Do not wait until the plant is completely parched to water it.

In addition, bigger plants typically require less frequent watering since their massive tuberous roots retain water for longer durations.

In addition, spider plants require more water in the summer than in the winter, when their growth is significantly reduced.


Adding fertilizer to plants helps the plant grows faster, resist pests and improve its yield.

Spider plants require fertilizer application but unlike other plants they do not need as much other house plants.

Fertilizer application for spider plants depends on the type of fertilizer, the plant itself and the time of year.

Apply fertilizer to your spider plant as recommended, and watch it grow bountifully.

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About the author

Alex Kountry

Alex Kountry is the founder of HayFarmGuy and has been a backyard farmer for over 10 years. Since then he has decided to write helpful articles that will help you become a better backyard farmer and know what to do. He also loves to play tennis and read books


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