How to Design and Manage an Indoor Permaculture Oasis
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☀️ 2-Days Workshop
with Jerome Osentowski
in Slovenia
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🌱 A rare opportunity to learn directly from one of permaculture’s living pioneers
Jerome Osentowski – founder and director of the Central Rocky Mountain Permaculture Institute (CRMPI), pioneer of the Climate Battery Technology, and master of the forest garden under glass – is coming to Europe for a rare in-person workshop.
If you’re passionate about permaculture, growing food in high altitudes, or extending your growing season, this is your chance to learn directly from one of the world’s leading practitioners.
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Practical Information
- Location: Podgrad, Slovenia
- Language: English
- Date: 6–7 December 2025
- Time:
from Saturday 10:00 until Sunday 16:00
- **Cost & Registration:**
Find the price that best fits your situation:
€250 – for individuals with a low personal income.
€350 – for those with a stable income attending privately.
€450 – helps make lower rates possible for others.
€500 – for participants supported by, or attending on behalf of, an organisation or company.
(!) including accommodation and meals. Details via the link above.
You enter your selection during registration.
👇🏻Accommodation Options below.
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<img src="/icons/map-pin_gray.svg" alt="/icons/map-pin_gray.svg" width="40px" /> Praprece 2, Vransko, Slovenia
https://www.google.com/maps/place/Graščina+Podgrad,+Jama+Vetrnica,+Prapreče+2,+3305+Vransko,+Slowenien/@46.2469323,14.9379675,692m/data=!3m1!1e3!4m15!1m8!3m7!1s0x476543cb0a63bccf:0xb0aa212cb782430!2sGraščina+Podgrad,+Jama+Vetrnica,+Prapreče+2,+3305+Vransko,+Slowenien!3b1!8m2!3d46.2469305!4d14.9404029!16s%2Fg%2F11bw3ypkth!3m5!1s0x476543cb6f8e4e39:0xbe6077b8fc72fa56!8m2!3d46.246123!4d14.9408803!16s%2Fg%2F11x6rcz4_z?entry=ttu&g_ep=EgoyMDI1MTAyOS4yIKXMDSoASAFQAw%3D%3D
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👉🏻
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Accommodation Options
Podgrad - The Venue
Inspirations
Impressum & Privacy
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👉🏻
A climate battery can create warm, stable conditions — like those in tropical or Mediterranean regions — even in high-altitude or cold areas.
Osentowski’s greenhouse designs, suitable for both small home gardens and large commercial projects, are fully ecological. They use a simple system that captures and stores warm and cool air, releasing it when needed to keep the temperature balanced.
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🌤️ What You’ll Learn
A hands-on weekend combining deep knowledge, design principles and real-world practice:
- Growing in Greenhouses
What you need to know to successfully grow perennial crops in protected environments - and where to find more information.
- Greenhouse Designs & Materials
Comparing types, shapes, materials, sizes and costs – and when each design works best.
- The Climate Battery System
How to use passive heat storage and humidity regulation to lift your microclimate from alpine to Mediterranean or even tropical conditions. Includes planning, materials, management, and examples of good and bad practices.
- Collaborative Site Design
Group design process based on a live example: analysing site conditions, choosing local materials, selecting an appropriate greenhouse design, and designing key elements such as the climate battery, thermal wall, and interior layout (beds, paths, space for annuals, etc.).
The talk will be about irrigation, additional heating systems (e.g. compost, biogas, biochar production, sauna), and the selection of available materials based on function, cost, and quality — followed by planning the implementation process.
- Forest Garden Design in Greenhouses
How to design a combination of perennial plants — soil preparation, watering, care, and more. Characteristics of Mediterranean and tropical forest gardens.
- Adaptations to other cases
Year-round cultivation of annuals, commercial greenhouses, and greenhouses integrated into houses. During the workshop, we will dedicate time to advising you on your specific cases. For greater efficiency, please describe them when registering.
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🍊 Inspiration
At CRMPI in Colorado’s Rocky Mountains, Jerome grows figs, avocados, papayas, citrus and bananas — all at 2,400 metres elevation, fully solar-powered and off the grid.
“We’re not trying to play God. We’re doing some logical mimicking of nature.”
— Jerome Osentowski
Learn more about his work:
🔗 CRMPI – Central Rocky Mountain Permaculture Institute
🔗 The Forest Garden Greenhouse – Common Sense Home
🔗 Aspen Times: 25 Years of CRMPI
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🌾 Who Is This For?
- Permaculture practitioners and garden enthusiasts
- Growers working in mountain or cold-climate regions
- Professional growers to extend the growing season and improve the climate in greenhouses during the summer
- Designers, educators, and architects interested in regenerative systems
- Anyone who sees greenhouses as living ecosystems
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