RHP

Kenniscentrum en kwaliteitskeurmerk voor substraten

[RHP @RHPgrowingmedia]

Since 1 January 2026, RPP has been part of the RHP organisation. To mark the 10th anniversary of the RPP certification scheme, we are publishing a series of interviews on RPP. We start with Tomi Koivula: https://t.co/F52sHurUHB

[RHP @RHPgrowingmedia]

We are pleased to share the expansion of the RHP greenhouse, creating additional space for plant response tests and weed tests used in the assessment of raw materials for the RHP and RAG quality marks. https://t.co/EXLxkJtrS2

[RHP @RHPgrowingmedia]

🌱 𝗡𝗲𝘄 𝗮𝗿𝘁𝗶𝗰𝗹𝗲 𝗯𝘆 𝗥𝗛𝗣 𝗶𝗻 𝗙𝗹𝗼𝗿𝗮𝗖𝘂𝗹𝘁𝘂𝗿𝗲 𝗜𝗻𝘁𝗲𝗿𝗻𝗮𝘁𝗶𝗼𝗻𝗮𝗹
📖 Read the article on pages 24–27 of the June 2026 Substrates Issue of FloraCulture International:
https://t.co/rw6zewUi8g

[RHP @RHPgrowingmedia]

Binnen #RHP loopt collectief onderzoek naar het gedrag van verpakte substraten, met specifieke aandacht voor big bales en het zuurstofgehalte in de verpakking. Samen met de gecertificeerde bedrijven BOL en Lensli wordt dit praktijkgericht onderzocht: https://t.co/cYnScxsEbd

[RHP @RHPgrowingmedia]

📘 𝗥𝗛𝗣 𝗔𝗻𝗻𝘂𝗮𝗹 𝗥𝗲𝗽𝗼𝗿𝘁 𝟮𝟬𝟮𝟱 𝗶𝘀 𝗻𝗼𝘄 𝗮𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲!

👉 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗿𝗲𝗽𝗼𝗿𝘁 𝗵𝗲𝗿𝗲:
𝘌𝘯𝘨𝘭𝘪𝘴𝘩: https://t.co/7oG6l0TijM
𝘋𝘶𝘵𝘤𝘩: https://t.co/QLpgjY1zAM
#RHP #AnnualReport #GrowingMedia #Knowledge #Certification

[RHP @RHPgrowingmedia]

🌴🥥 This time in our 𝘙𝘏𝘗 𝘚𝘵𝘰𝘳𝘪𝘦𝘴: 𝘊𝘰𝘮𝘮𝘪𝘵𝘵𝘦𝘥 𝘵𝘰 𝘘𝘶𝘢𝘭𝘪𝘵𝘺 series: 𝗦𝗶𝘃𝗮𝗻𝘁𝗵𝗶 𝗝𝗼𝗲 𝗖𝗼𝗶𝗿𝘀 from India. Curious to learn more about their story and experience? 👉 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝘀𝘁𝗼𝗿𝘆: https://t.co/hBEFbRGDCX

[RHP @RHPgrowingmedia]

Recently @Cultilene has obtained #RHP #Horticulture certification for its #stone #wool #plugs used for crop propagation. The company already held RHP certification for stone wool and is now the first company with RHP‑certified stone wool plugs. Read more: https://t.co/k3xqQzcr0J

[RHP @RHPgrowingmedia]

What a great way to mark a milestone 🎉 Last weekend, we celebrated 40 years of RHP together with colleagues and partners in London. A true highlight was our visit to the RHS Chelsea Flower Show🌸! https://t.co/dYEJezEKfB

[RHP @RHPgrowingmedia]

𝗙𝗮𝘀𝗰𝗶𝗻𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗣𝗹𝗮𝗻𝘁𝘀 𝗗𝗮𝘆🌱Today, we celebrate the power of plants, and the basis they rely on. 𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗼𝗳 𝗴𝗿𝗼𝘄𝗶𝗻𝗴 𝗺𝗲𝗱𝗶𝗮 𝗺𝗮𝘁𝘁𝗲𝗿𝘀. RHP supports certified companies through knowledge and the 𝗥𝗛𝗣 & 𝗥𝗔𝗚 quality marks. #FoPD

[RHP @RHPgrowingmedia]

In a new edition of 𝘙𝘏𝘗 𝘚𝘵𝘰𝘳𝘪𝘦𝘴: 𝘊𝘰𝘮𝘮𝘪𝘵𝘵𝘦𝘥 𝘵𝘰 𝘘𝘶𝘢𝘭𝘪𝘵𝘺, we feature 𝗔𝗦𝗕 𝗚𝗿𝗲𝗲𝗻𝘄𝗼𝗿𝗹𝗱 𝗘𝗲𝘀𝘁𝗶 𝗢𝗨̈ from 𝗘𝘀𝘁𝗼𝗻𝗶𝗮. The company shares what RHP certification means to them in practice: https://t.co/zx4fgZ4oHe

[RHP @RHPgrowingmedia]

🎓💚🌱We staan vanmiddag op de #WURCareerDay en zijn in gesprek met studenten van Wageningen University & Research over ons werk en over wat werken bij #RHP zo interessant maakt. 𝗢𝗼𝗸 𝗶𝗻𝘁𝗲𝗿𝗲𝘀𝘀𝗲? Check onze #vacatures: https://t.co/0WGvSODZOM

[RHP @RHPgrowingmedia]

Vakblad Onder Glas (nr. 4, april 2026) publiceerde deze maand een achtergrondartikel met Martine Holtkamp (@RHPgrowingmedia) over de ontwikkeling van 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗹𝘆 𝗣𝗿𝗼𝗱𝘂𝗰𝗲𝗱 𝗖𝗼𝗶𝗿 (RPC). 👉Lees het artikel op pagina 42-43.

[RHP @RHPgrowingmedia]

With 𝘙𝘏𝘗 𝘚𝘵𝘰𝘳𝘪𝘦𝘴: 𝘊𝘰𝘮𝘮𝘪𝘵𝘵𝘦𝘥 𝘵𝘰 𝘘𝘶𝘢𝘭𝘪𝘵𝘺, we put RHP‑certified companies in the spotlight. This time: Yara, producer of RHP-certified fertilisers: https://t.co/IoikEEAEk3

[RHP @RHPgrowingmedia]

In onze rubriek 𝘙𝘏𝘗 𝘚𝘵𝘰𝘳𝘪𝘦𝘴: 𝘊𝘰𝘮𝘮𝘪𝘵𝘵𝘦𝘥 𝘵𝘰 𝘘𝘶𝘢𝘭𝘪𝘵𝘺 laten we gecertificeerde bedrijven aan het woord over wat RHP-certificering voor hen betekent. Deze keer is BOL specialist in substraten: https://t.co/ue5tT03eYh

[RHP @RHPgrowingmedia]

📢 𝗡𝗲𝘄 𝗥𝗛𝗣 𝗳𝗮𝗰𝘁𝘀𝗵𝗲𝗲𝘁 𝗼𝗻 𝗨𝗻𝗳𝗲𝗿𝘁𝗶𝗹𝗶𝘀𝗲𝗱 𝗚𝗿𝗼𝘄𝗶𝗻𝗴 𝗠𝗲𝗱𝗶𝗮

𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱 𝗶𝘁 𝗻𝗼𝘄:
👉English: https://t.co/crtSTcOdsg
👉Dutch (Factsheet Onbemest substraat): https://t.co/KmKPzd82ts

[RHP @RHPgrowingmedia]

Deze week gingen de deelnemers aan de training Growing Media A bij RHP in de proefkas aan de slag met de EN 12580-volumemeting en in het laboratorium met de methode 1 op 1,5. Volgende week sluiten de deelnemers de training af met het examen. Wij wensen ze alvast veel succes! 🍀

[RHP @RHPgrowingmedia]

Yesterday we welcomed auditors, trainee auditors and reviewers to RHP for the annual 𝗛𝗮𝗿𝗺𝗼𝗻𝗶𝘀𝗮𝘁𝗶𝗼𝗻 𝗗𝗮𝘆 for the 𝗥𝗛𝗣 𝗮𝗻𝗱 𝗥𝗔𝗚 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗺𝗮𝗿𝗸𝘀. A day to exchange knowledge. We closed the day with a 𝗿𝗮𝘄 𝗺𝗮𝘁𝗲𝗿𝗶𝗮𝗹𝘀 𝘄𝗼𝗿𝗸𝘀𝗵𝗼𝗽.

[RHP @RHPgrowingmedia]

🌴🥥#Coir is a valuable #substrate material used worldwide and is increasingly applied because of its favourable physical properties. What generally receives less attention is the #phytosanitary safety of coir products. Read more: https://t.co/1DLERRIo5s

[RHP @RHPgrowingmedia]

🌱Na een korte onderlinge kennismaking ging vanmorgen de #training 𝗚𝗿𝗼𝘄𝗶𝗻𝗴 𝗠𝗲𝗱𝗶𝗮 𝗔 voor gecertificeerde bedrijven van start! In de komende twee maanden krijgen de deelnemers waardevolle inzichten van onze experts. #RHP #kennisdelen #substraten #grondstoffen #GMA

[RHP @RHPgrowingmedia]

We have a #vacancy for a #Manager #Responsible Sourcing (32-40 hours): https://t.co/F24yDpm8T9