The greenhouse
crop planning tool
For growers

ProJoules is your greenhouse crop planning tool. It helps you plan crops, forecast harvests, and adjust schedules based on real data. No unnecessary features. Just a practical tool to improve your daily work and long-term results.

Features

Crop planning & registration

Easily plan, register, and manage all your crops in one central place. Keep a clear overview of your growing strategy and make smarter decisions throughout the season.

Harvest forecast

Know what to harvest and when. Even before the season begins, our forecast gives you clarity and helps you align planning, sales, and labor more efficiently.

Light & Coating Insights

Get a full understanding of your greenhouse light levels and receive coating insights. Apply at the right time to maintain high quality fruits.

For greenhouse growers

Built for vegetable growers who need practical greenhouse planning.

We understand the daily pressure of making the right decisions in a greenhouse. That is exactly why we created ProJoules. It is a practical planning platform made for professional vegetable growers who want more clarity, structure, and control in their crop planning. ProJoules gives you all features for one transparent price with no hidden costs. Your data remains private, and our team is ready to support you whenever needed. The platform is available in English, Dutch, French, Spanish, and German, so your team can work in the language they feel most comfortable with.

Testimonials

What Growers Say
About Us

“With ProJoules, we now talk about clear graphs and not just feelings. The platform helps us see the impact of our choices right away, based on real data. That gives us more confidence and helps us avoid mistakes before they affect the crop. For us, it has become an essential part of planning both lit and unlit tomato crops.”

Heiko Hagdorn, Tomato Grower at Hagdorn Tomatoes, Germany

“In 2024, the long-term forecast in our cultivation plan with ProJoules matched well with what we actually achieved in practice. That accuracy helps us meet the expectations of our customers and reduces surprises during the season. It also gives us better insights into the crop, which we use to fine-tune our decisions. For us, ProJoules makes planning more reliable and easier to manage."

Dave van Drunen, Tomato Grower at Kwekerij de Bron

“ProJoules helps growers turn experience into clear decisions. Instead of going by feel, we now use real data to back up every choice. At one of the greenhouses I work with, we clearly saw the impact of too much leaf mass on production. With insights from the platform, we made changes and hit record yields. For me and the growers, it’s a tool that strengthens both advice and results.”

Willem van Dijk, Cultivation Advisor

Built for better greenhouse planning

What are the benefits

Maximize production with better planning

Understand what your crop needs ahead of time, and prepare with clear data and realistic forecasts.

Reduce crop stress and avoid mistakes

Use insights, not guesswork. Spot issues early and respond before they affect your yield.

Improve advisor communication

Everyone works from the same data, so advice is more focused and planning becomes easier to discuss.

Save time and stay organized

No more scattered spreadsheets. ProJoules keeps your crop plans and measurements in one clear overview, accessible from any device.

Watch Our Webinar: Light in the Greenhouse

Did you miss our recent webinar on greenhouse lighting, or would you like to revisit the insights we shared? The full recording is now available. In this session, we dive into how light impacts crop growth and how the right strategies can make a difference in your greenhouse.

You can watch the webinar at your own pace, pause where needed, and revisit the most important takeaways.

The greenhouse crop planning tool For growers