Discover our wide selection of over 684 varieties of hardened young plants.
– for professionals only –
If you are interested in collaborating
or placing an order:
Our main mission is the hardening of young plants. The step from laboratory plant to greenhouse plant is the most important one in the process of cultivation. At that point the plant leaves the protected environment of the laboratory in order to develop its roots in peat. Gradually, the plant will need to adapt to light, ambient air, temperature, water and nutrients in a greenhouse environment. This dramatic transition requires precision and knowledge in order to ensure the best result.
New catalogue 2026
News – Visit us at TRADE FAIR AALSMEER 2025
This year we will be participating in Royal FloraHolland’s TRADE FAIR AALSMEER.
You can find us in Stand 2.15, November 4 – 6th!
News – To peat or not to peat?
At Denis-Plants, we have made the choice:
NOT TO PEAT!
An explicit choice for sustainability, but without compromising our high quality standards.
Peat is a widely used ingredient in many crop substrates. It improves water holding capacity, buffers acidity and binds fertilisers so that they are available to the plant even when fertilisers are not applied. Indispensable it seems. And yet in recent years, especially from Britain, there has been a movement to grow ‘peat-free’. Peat is a natural product that is easy to mine, but the downside is that it takes centuries (!) for a few millimetres of peat to grow again. Moreover, peatland forms a gigantic buffer of CO2. If this CO2 enters our atmosphere, the consequences are incalculable. So the call to stop peat use is the only right one with a view to a sustainable future.
At Denis-Plants, we have therefore explicitly chosen to take the lead in this conversion.
However, this sounds easier said than done because, after all, peat has been an indispensable ingredient in our nursery for decades of years. So we certainly didn’t rush into this. To be able to continue to guarantee our quality, we tested and adjusted extensively over a long period of time.
In 2025, we made the switch to peat-free substrate with our perennials. In 2026 our indoor plants will be delivered peat-free as well. Only for Hellebore we make an exception for the time being. These crops are currently still being tested in order to switch 100% to peat-free.
Together we work towards a sustainable planet.
The future is bright, the future is peat-free.
News – Find us at IPM Essen 2026
From 27 till 30 January 2026 Essen (Germany) will once again be the meeting place for the international green sector when the world trade fair IPM Essen 2026 takes place. With 1400+ exhibitors from 45 countries, Denis-Plants will of coursebe represented as well. We hope to welcome you in hall 2, booth D30!
News – Let’s meet at FOUR OAKS Trade Show 2025
On the 2nd & 3rd of September Denis-Plants is taking part in Four Oaks Trade Show in Macclesfield, Cheshire (UK).
You can find us at the VLAM pavilion in hall D (D82 + D91).
News – Visit us at Plantarium I GROEN-Direkt 2025
We are looking forward to welcome you at Plantarium I GROEN-Direkt 2025 on August 27 – 28! Discover our novelties, simply catch up and get your hands our brand new catalogue with next season’s assortment of perennials and indoor plants. You can find us at BOOTH L603. See you there!

















