Arber Horticulture · since 1996
Professional and hobby substrates — developed over 30 years
Formulas based on selected peat from the Baltic and Germany, for professional cultivation, and hobby products under the Leader, Leader Bio and Nathuro brands. 500+ active formulas, since 1996.

Selected supply chain · since 1996
30 years on the same extraction sites, year after year.
The peat that goes into our formulations comes from regulated sites in Lithuania and Germany, worked in continuity for three decades. Same fields, same batch quality, recipe that stays consistent for the nursery using it year over year.
Discover how we select our raw materialsStart here
Do you grow in a greenhouse or nursery, tend a home garden, or raise animals?
Choose the starting point that matches where and what you grow: find technical data sheets, pack formats and the sales agent for your region.

Technical substrates for professional cultivation
Arber Professional formulas are growing substrates based on selected peat, perlite, pumice and technical fibers. Developed for long production cycles, controlled drainage and batch repeatability.
- 35 finished formulas — DX, Forest, Unipot, Florigen, Minipot, Press, Bio + 12 specific formulas
- Loose raw materials — peat, perlite, pumice, wood fiber
- Formats: 70 L, 250 L, Big Bale, Big Bag 2.5 m³
- Downloadable technical data sheet and SDS for every SKU
- Custom formulation available on request

Three hobby brands for home gardening
Leader, Leader Bio and Nathuro are the three hobby brands in the Arber group. They cover universal and specific potting mixes, organic growing media, plant care products and natural plant protection.
- Potting mixes for acid-loving plants, orchids, citrus, herbs and lawn
- Plant care — granular, liquid and slow-release fertilizers
- Natural plant protection — plant strengtheners based on neem, horsetail and nettle
- Certified organic range (Leader Bio)
- Peat-reduced range in development (Nathuro)

Natural bedding for farms
Animal Bedding is Arber’s natural peat-based bedding for henhouses and stables: high absorbency, less ammonia and odour, reusable as compost.
- Peat base — absorbs up to 5–7× its weight
- Cuts ammonia and odour up to 90%
- 100% natural, no chemical additives
- For poultry (layers) and horses (boxes, stables)
- 70 L, 250 L, Big Bale 5 m³ formats
Quality
The same substrate, batch after batch.
Same extraction sites, traced raw materials, checks on every formula. The recipe stays the same year after year.
Supply chain continuity
For 30 years, selected peat has come from the same regulated extraction sites in Lithuania and Germany. Same raw materials, same batch quality. No emergency substitutions that change substrate behaviour mid-cycle.
Documented traceability
Every SKU has a downloadable technical data sheet and SDS. Batch qualification is documented and traceable throughout the entire supply chain, from the extraction site to delivery at your facility.
Checks on every formula
pH, EC and granulometry checks on every batch before dispatch. The formula you receive is the same one that left the laboratory, with tolerances stated in the technical data sheet.
Arber in numbers
What keeps batch quality consistent
of extraction
Service
Three things that change the way you work with a substrate supplier
Delivery across Italy, transport included, agronomic support. No mandatory full truckloads, no surprises on the invoice.
Delivery across Italy
Order smaller volumes without the full-truckload requirement. The same service for the local garden centre and the national nursery.
Transport included in the price
The price you receive is the price you pay. Delivery included to your gate. No surprise surcharges on the invoice, no separate transport costs to reconcile at the end of the month.
Agronomic support
Your regional agent supports you with formula selection, pilot trials in the greenhouse and mid-cycle issues. Substrate and technical support in one package, not a bag-and-go.

Sustainability
Regulated extraction. Selected supply chain. Peat-free ranges in development.
The peat used in the formulas comes from regulated extraction sites in Lithuania and Germany, worked continuously year after year to ensure consistent batch quality.
The German part of the supply chain is HORTICERT certified, the scheme that verifies ecological, social and economic sustainability across the entire supply chain for peat, peat substitutes and substrates. Selected professional raw materials are certified under the RAL quality assurance procedure of the Gütegemeinschaft Substrate für Pflanzen. Raw materials used in the organic ranges are included in the FiBL list.
At the same time, Arber is working towards a gradual reduction in the peat share: peat-reduced ranges are already in the catalogue, and peat-free formulas are in development for the hobby segment and selected professional segments.
Read more about the Arber position on peatNews
Latest updates from Arber
Catalogue launches, supply chain certifications and developments in the sustainable ranges.

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Read →Sales network
Export-first. Italian operations.
Two operational sites in Italy — Bolzano and Alezio — feed an export team that ships to 20+ countries by truck, container, or intermodal. Whatever your timezone, you get a real person on the technical side. (And if you’re in Italy, 15 zone agents cover the territory.)
30
years of supply chain
20+
export countries
<24h
typical response time
4
languages supported
Talk to Arber
Price list, data sheet and sample: on the other side of the form.
One form submission, one direct reply from your zone agent (Italy) or the international sales team.
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