fertilizer

91 products

  • Two containers of Plagron Vita Race from Bertels B.V. for stimulating leaf growth include a dark purple, cube-shaped jug and a smaller bottle with a white cap. Both have purple labels with green accents – perfect for the growth phase.
    Vendor:
    Bertels B.V.

    Plagron Vita Race - stimulates the leaf green

    Regular price From CHF 8.26
    Sale price From CHF 8.26 Regular price CHF 8.26
  • Plagron Easy Pack Terra from Bertels B.V. contains 100% mineral-based fertilizer in the bottles "Terra Grow", "Terra Bloom", and "Green Sensation". A measuring cup is also included and promises improved flowering, resilience, soil health, and yield increase.
    Vendor:
    Bertels B.V.

    Plagron Easy Pack Terra - complete fertilizer for plants | 1 piece

    Regular price CHF 15.67
    Sale price CHF 15.67 Regular price CHF 15.67
  • A box of Azet fertilizer sticks for orchids from Neudorff Shop, labeled as 100% organic, contains 40 sticks, features German text, displays exotic blooms, and the yellow Neudorff sunflower logo.
    Vendor:
    Neudorff Shop

    Azet fertilizer sticks for orchids

    Regular price CHF 6.97
    Sale price CHF 6.97 Regular price
  • Front view of a box of Neudorff Shop Azet Fertilizer Sticks for flowering plants with flower illustrations, product information, a label for 40 sticks, and packaging in yellow with green and red accents.
    Vendor:
    Neudorff Shop

    Azet fertilizer sticks for flowering plants

    Regular price CHF 6.97
    Sale price CHF 6.97 Regular price
  • The Plagron Lightmix 50L – Without Perlite for pure soil by Bertels B.V. is a 50-liter terrace substrate in a purple-white bag with a red area that highlights the name and offers individual fertilization options as well as optimal air and oxygen values.
    Vendor:
    Bertels B.V.

    Plagron Lightmix 50l - without a perlite for pure earth | Sack (50 l)

    Regular price CHF 21.53
    Sale price CHF 21.53 Regular price CHF 21.53
  • The Plagron NextGen Growplug from Bertels B.V. features 84 compartments filled with soil, enriched with coconut fibers for better root formation. It has a grid design that is ideal for planting and is equipped with a striking product information label on the surface.
    Vendor:
    Bertels B.V.

    Plagron Nextgen Growplug - root pathogen | Pack (84 pieces)

    Only 1 left
    Regular price CHF 14.84
    Sale price CHF 14.84 Regular price CHF 14.84
  • Against a white background, two containers with Plagron Lemon Kick pH regulator from Bertels B.V. are depicted: The larger one is a dark purple canister, the smaller one is a matching bottle, both labeled with the product name and a description in white lettering.
    Vendor:
    Bertels B.V.

    Plagron Lemon Kick PH controller

    Regular price From CHF 4.81
    Sale price From CHF 4.81 Regular price CHF 4.81
  • A 10-kg bag of Neudorff Shop Bentonite Sand Soil Improver covers 200 m², is ideal for sandy soils, and features packaging with pink flowers and a close-up of the mineral-rich contents.
    Vendor:
    Neudorff Shop

    Bentonite sandy soil improver

    Regular price From CHF 20.50
    Sale price From CHF 20.50 Regular price
  • A green plastic bottle of Neudorff Shop Balsamol foliar fertilizer with a yellow cap; suitable for 80 L, ideal for conifers and evergreens, and made from 90% recycled plastic.
    Vendor:
    Neudorff Shop

    Balsamol foliar fertilizer

    Regular price CHF 16.62
    Sale price CHF 16.62 Regular price
  • Neudorff Shop Nettle Pellets are an effective plant tonic that provides 330 L of nettle slurry to support the growth of ornamental plants, fruits, and vegetables. The packaging shows images of flowers, fruits, and vegetables.
    Vendor:
    Neudorff Shop

    Nettle pellets

    Regular price CHF 16.62
    Sale price CHF 16.62 Regular price
  • A green plastic bottle from Neudorff Shop Azet Citrus & Mediterranean Plant Liquid Fertilizer with a yellow cap, 100% vegan, made from 90% recycled material, ideal for lemons, oleander, and other Mediterranean plants.
    Vendor:
    Neudorff Shop

    Azet citrus & Mediterranean plants liquid fertilizer

    Regular price From CHF 7.20
    Sale price From CHF 7.20 Regular price
  • On a green plastic bottle of Neudorff Shop Azet Universal Liquid Fertilizer with a yellow cap, labeled "For all plants" and "100% organic vegan", vegetables and flowers are depicted, emphasizing the balanced nutrient ratio.
    Vendor:
    Neudorff Shop

    Azet universal liquid fertilizer

    Regular price From CHF 7.20
    Sale price From CHF 7.20 Regular price
  • A white spray bottle with a pump attachment labeled "Homeopathic Orchid Elixir" for orchid care is adorned with pink orchids and the Neudorff Shop logo above the label, indicating the product as a plant care product.
    Vendor:
    Neudorff Shop

    Homeopathic orchid elixir

    Regular price CHF 11.08
    Sale price CHF 11.08 Regular price
  • The Neudorff Shop tree protection set is characterized by its distinctive green-yellow branding. Both the organic tree paint bottle and the caterpillar and ant glue ring can feature tree motifs with green tape for tree protection.
    Vendor:
    Neudorff Shop

    Tree protection set

    Regular price CHF 22.16
    Sale price CHF 22.16 Regular price
  • A green bottle of Neudorff Shop Azet Liquid Balcony Plant Fertilizer with a yellow cap is labeled with flowers and German text, ideal for all balcony plants like summer flowers and window boxes.
    Vendor:
    Neudorff Shop

    Azet balcony plant fertilizer liquid

    Regular price From CHF 11.08
    Sale price From CHF 11.08 Regular price

Fertilizer - for healthy growth and strong plants

A nutrient-rich soil is the foundation for vigorous growth, vibrant blooms, and a bountiful harvest. Fertilizer provides plants with exactly the nutrients they need for healthy development - from seedlings to full maturity. Whether in the garden, on the balcony, or in professional cultivation: The right fertilizer ensures optimal conditions and sustainably strengthens plants from within.

High-quality fertilizers not only improve nutrient supply but also soil structure. They promote root formation, increase resistance to diseases, and help maintain a balanced soil life in the long term.

 

This is what distinguishes high-quality fertilizer

A good fertilizer convinces with a balanced composition and easy application. Depending on the type of plant and season, plants require different nutrients - nitrogen, phosphorus, potassium, and trace elements are the most important building blocks.

In addition to classic mineral variants, organic and biological fertilizers are gaining importance. They act gently, promote soil life, and contribute to sustainable gardening.


Advantages of modern fertilizers at a glance:
  • Promote vigorous plant growth and root formation
  • Strengthen resistance to pests and diseases
  • Improve soil structure and nutrient absorption
  • Environmentally friendly and effective in the long term
  • Suitable for gardens, houseplants, and professional cultures

An example of natural plant nutrition is the liquid Neudorff Azet Universal Fertilizer, which contains all important nutrients and is suitable for almost all plants. The Neudorff Azet Citrus & Mediterranean Fertilizer ensures healthy leaves and aromatic fruits in Mediterranean plants with organic components. For sustainable soil revitalization, the Neudorff Sandy Soil Improver is recommended, which loosens the structure and improves water retention - ideal for sandy soils.


Application and practical tips for optimal fertilization

The correct application of fertilizer is crucial for success. Too much can harm plants just as much as too little. Therefore, the recommended dosage and the individual needs of the plants should always be considered.

Tip:

  • Spring: Initial fertilization for vigorous growth and new shoots
  • Summer: Subsequent fertilization to support flowering and fruit formation
  • Autumn: Potassium-rich fertilization strengthens plants for winter
  • Year-round: Liquid fertilizers or organic alternatives for potted and indoor plants

When applying, it is important to distribute fertilizer evenly in the root area and then water well. Liquid fertilizers can be conveniently administered through the irrigation water, while granules and pellets are ideal for beds or lawns.

Organic fertilizers work more slowly but more sustainably, as they enrich the soil with humus and promote natural soil life. This creates a healthy balance that ensures strong and resilient plants in the long term.


Sustainability Meets Effectiveness – Your Partner for High-Quality Fertilizers

Fertilizer is much more than a nutrient source – it is a key to sustainable plant care and healthy garden culture. With the right products, the balance between powerful supply and environmentally conscious action is achieved.

In addition to fertilizers, you will find many other product areas at Altruan that perfectly complement your gardening and care work:

Altruan stands for quality, sustainability, and expertise. With high-quality fertilizers and complementary accessories, you create ideal conditions for strong plants, blooming gardens, and healthy harvests – year after year.

Why is fertilizer important for plants?

Fertilizer provides plants with essential nutrients such as nitrogen, phosphorus and potassium. These promote growth, flowering and fruit formation and prevent deficiency symptoms that can lead to weak or diseased plants.

What types of fertilizer are there?

There are mineral, organic and biological fertilizers. Mineral ones work quickly, organic ones promote long-term soil health. Biological fertilizers combine both advantages and are particularly environmentally friendly.

How often should you fertilize?

This depends on the type of plant and the season. In spring and summer, regular fertilization is usually carried out every two to four weeks. Houseplants can be supplied with liquid fertilizer at longer intervals all year round.

Are organic fertilizers better for the environment?

Yes, organic fertilizers are made from natural raw materials and sustainably promote soil life. They improve humus formation and reduce the risk of over-fertilization - ideal for ecologically conscious gardeners.