Embracing sustainable energy practices at the Marginpar flower farms
Wednesday 28 May 2025
The power of the sun
Montana Lisianthus: Sustainability as Second Nature
Wednesday 23 April 2025
Lisianthus cultivation is known as one of the most energy-intensive crops within the ornamental horticulture sector. However… did you know that significant progress is being made? Increasingly, growers such as Montana Lisianthus are taking substantial steps toward a more sustainable future. Not only by applying innovative techniques, but also by drawing intelligent inspiration from nature.
A Natural Approach to Cultivation
At Montana Lisianthus, it's no longer just about aesthetics. This pioneering nursery demonstrates that it's entirely possible to cultivate high-quality cut flowers using an (almost entirely) biological approach. The soil is the foundation. After harvest, organic material is returned to the earth and enriched with beneficial microorganisms such as fungi and bacteria to keep the soil life healthy and dynamic. This method allows the complete elimination of chemical fungicides without compromising quality.
Geothermal Energy and CO₂ Reuse: The Energy of the Future
Starting in 2025, the greenhouses at Montana Lisianthus will be heated using geothermal energy. Warm water is extracted from a source two kilometers deep to provide sustainable heating. As a result, reliance on fossil fuels becomes largely obsolete.
New from 2025: In the fourth quarter, Montana is expected to be connected to the geothermal heat network. This will provide an even more stable and sustainable energy supply and contributes to accelerating the energy transition within the sector.
Montana, like a growing number of growers, applies CO₂ reuse in the greenhouse. Through a network of pipelines, the nursery receives residual CO₂ from industrial sources in the Port of Rotterdam. The plants convert this CO₂ into oxygen, creating a circular and climate-friendly solution.
Natural Pest Control with ‘Little Spider’
Chemical pesticides? These are rarely used anymore in Montana’s greenhouses. Instead, natural enemies are introduced, such as microscopic spider-like creatures that combat harmful insects like moths and aphids. These ‘Little Spiders’ remain in the greenhouse after harvest and help keep the ecosystem in balance. This biological pest control method is not only beneficial for the flowers but also for the environment.
A Greener Future for Lisianthus
Montana Lisianthus proves that top quality can go hand in hand with environmentally conscious choices. With investments in geothermal energy, biological pest control, and CO₂ recycling, they take responsibility for people and the planet. The lisianthus from their greenhouses is not only a stunning addition to any bouquet, but also a mindful choice toward a more sustainable world.
Research into Energy-Efficient Lisianthus Cultivation at WUR
Smarter growing, lower energy use
A promising study is currently underway at Wageningen University & Research (WUR) in Bleiswijk, focusing on reducing energy consumption in lisianthus cultivation. The research is part of the program ‘Greenhouse as Energy Source’, an initiative by the Dutch government and the greenhouse horticulture sector.
Research Objective
To develop a cultivation strategy that reduces energy consumption without compromising production or quality. Experiments focus on:
• Lower average daily temperatures
• CO₂ optimisation
• LED lighting instead of HPS
• Higher humidity levels
Initial findings show
Lisianthus can grow at lower temperatures, provided lighting and humidity are carefully adjusted. LED lighting is not only energy-efficient but also offers opportunities to influence plant development. These insights could soon support growers in transitioning to more energy-efficient cultivation strategies.
Results are expected later this year and may be incorporated into sector guidelines or practical tools.