fertilizer

91 products

  • Azet Garden Lime
    Vendor:
    Neudorff Shop

    Azet Garden Lime

    Regular price ¥1,439 JPY
    Sale price ¥1,439 JPY Regular price
  • A 1.75 kg bag of Neudorff Shop Azet Raised Bed & Vegetable Fertilizer stands upright in a green-beige packaging with vegetables, a raised bed, and text indicating its use for vegetables and herbs and its organic qualities.
    Vendor:
    Neudorff Shop

    Azet raised bed & vegetable fertilizer

    Regular price ¥2,365 JPY
    Sale price ¥2,365 JPY Regular price
  • The Azet fertilizer sticks for green plants from Neudorff Shop are delivered in a box with a plant image, product information, and a "40 pieces" label. The packaging highlights the 100% organic, natural ingredients and the nutrient depot technology.
    Vendor:
    Neudorff Shop

    Azet fertilizer sticks for green plants

    Regular price ¥1,295 JPY
    Sale price ¥1,295 JPY Regular price
  • A 1.75 kg bag of Neudorff Shop Azet Buxus & Ilex Fertilizer stands upright and shows green boxwood and holly on the packaging, with product information and a reach of 70 m² printed on the front.
    Vendor:
    Neudorff Shop

    Azet Buxus & Ilex fertilizer

    Regular price From ¥1,707 JPY
    Sale price From ¥1,707 JPY Regular price
  • Azet Tree, Shrub & Hedge Fertilizer (1kg) from Neudorff Shop, with images of green and red-leaved shrubs and clear product information on the front - perfect for garden enthusiasts.
    Vendor:
    Neudorff Shop

    Azet tree, shrub & hedge fertilizer

    Regular price From ¥1,707 JPY
    Sale price From ¥1,707 JPY Regular price
  • A box of Neudorff Shop Azet Fertilizer Sticks for herbs contains 40 fertilizer sticks for aromatic herbs. The green-beige packaging with German text nourishes herbs grown in potting soil.
    Vendor:
    Neudorff Shop

    Azet fertilizer sticks for herbs

    Regular price ¥1,295 JPY
    Sale price ¥1,295 JPY Regular price
  • A green plastic bottle of Neudorff Shop Azet Liquid Flower Fertilizer with a yellow cap, flower label, German text, and a "100% Bio" badge. This liquid fertilizer supports the healthy growth of all flowers.
    Vendor:
    Neudorff Shop

    Azet flower fertilizer liquid

    Regular price From ¥1,336 JPY
    Sale price From ¥1,336 JPY Regular price
  • Azet fertilizer sticks for citrus & Mediterranean plants from the Neudorff Shop are organic fertilizer sticks for citrus and Mediterranean pots, ideal for balconies and terraces. The box shows lemons and contains 40 gray sticks.
    Vendor:
    Neudorff Shop

    Azet fertilizer sticks for citrus and Mediterranean plants

    Regular price ¥1,295 JPY
    Sale price ¥1,295 JPY Regular price
  • A green plastic bottle of Azet Buxus- & IlexFertilizer liquid from Neudorff Shop, 100% organic plant fertilizer for boxwood, holly, and other evergreen plants; made from 90% recycled material and equipped with a yellow cap.
    Vendor:
    Neudorff Shop

    Azet Buxus & Ilex fertilizer liquid

    Regular price From ¥1,336 JPY
    Sale price From ¥1,336 JPY Regular price
  • On a green spray bottle with a yellow nozzle labeled "OrchideenPflege" from Neudorff Shop, orchids are depicted, and a text indicates that it is a ready-to-use plant care product for optimal orchid health.
    Vendor:
    Neudorff Shop

    Orchid Care

    Regular price ¥1,645 JPY
    Sale price ¥1,645 JPY Regular price
  • On a box of Neudorff Shop Azet Berry & Fruit Fertilizer, an organic fertilizer for strawberries and berry bushes, various berries are depicted, and the packaging advertises the natural and long-lasting benefits.
    Vendor:
    Neudorff Shop

    Azet berry & fruit fertilizer

    Regular price From ¥1,645 JPY
    Sale price From ¥1,645 JPY Regular price
  • Azet Balcony Plant Fertilizer from Neudorff Shop comes in a 750g bag with pictures of summer flowers, is organic and suitable for up to 12 balcony boxes.
    Vendor:
    Neudorff Shop

    Azet balcony plants fertilizer

    Regular price ¥1,645 JPY
    Sale price ¥1,645 JPY Regular price
  • Azet Bamboo & Ornamental Grass Fertilizer from Neudorff Shop: 1.75 kg for grasses in the garden, organic ingredients, covers 35 m². The green-yellow packaging with grass and bamboo motif makes application particularly easy.
    Vendor:
    Neudorff Shop

    Azet Bamboo & Ornamental Grass Fertilizer

    Regular price ¥2,365 JPY
    Sale price ¥2,365 JPY Regular price
  • A rectangular container with Plagron Supermix – natural fertilizer from Bertels B.V. with a purple and white label featuring the words “Universal” and “Substrate Supplement” improves soil quality for optimal plant growth and has a convenient handle for easy handling.
    Vendor:
    Bertels B.V.

    Plagron supermix - natural fertilizer

    Regular price From ¥2,214 JPY
    Sale price From ¥2,214 JPY Regular price ¥2,214 JPY
  • Three cylindrical packages of Plagron Cocos Slab by Bertels B.V. are stacked horizontally and bear the RHP quality mark. The packaging is predominantly white with orange and purple accents, and the product name is in bold.
    Vendor:
    Bertels B.V.

    Plagron Cocos Slab - high -quality coconut substrate for plants | 1 piece

    Regular price ¥1,166 JPY
    Sale price ¥1,166 JPY Regular price ¥1,166 JPY

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.