An apple a day — what's really behind it, and why the wrong apple does the opposite July 19, 2026Steinkraft GmbH "An apple a day keeps the doctor away." This saying is over 150 years old. It originates from Wales, was first printed in 1866, and has since spread to all...
Grow spinach that's truly nutrient-rich — dark green, intense, and bolt-free July 17, 2026Steinkraft GmbH Spinach is one of the fastest successes in the vegetable garden – 4 to 6 weeks from sowing to harvest. If it works out. If not – pale leaves, bolting,...
Spinach – what's really in it, why Popeye was right, and what foliar fertilization has to do with it July 17, 2026Steinkraft GmbH Popeye was right. Not about the iron – there was a misplaced comma. But spinach is still one of the most nutrient-rich leafy greens we know. For reasons other than...
Caring for self-protecting apple trees — less spraying, more polyphenols, higher Brix value July 17, 2026Steinkraft GmbH An apple tree that bears fruit every year — without alternate bearing. Fruits that are deep red, intensely fragrant, and packed with 14 to 18 °Brix of quercetin and phloridzin....
Zeolite in the Garden – Effects, Application, and Experiences for Living Soil July 02, 2026Steinkraft GmbH Zeolite doesn't change the plant – it changes the soil. How the volcanic mineral stores water, retains nutrients and promotes a vibrant soil life: the comprehensive guide for garden soil,...
The blueberry — small, dark, exceptionally nutritious, and Ezra's favorite quality test June 03, 2026Steinkraft GmbH Ezra, our Labrador Retriever, gets a blueberry. He takes it carefully. He pauses. He spits it out. Not ripe enough. No refractometer in the world measures more precisely than a...
The tomato — why the world's most emotional vegetable is often just a water bomb today June 01, 2026Steinkraft GmbH There's that moment when you bite into a tomato from the market — and something happens. That taste. Then in winter, you buy a tomato at the supermarket — and...
Planting Nutrient-Dense Strawberries - Understanding Diseases, Building Soil, Increasing Brix June 01, 2026Steinkraft GmbH A vital strawberry plant with a high Brix value protects itself—against Botrytis, against mildew, against mites and aphids. Here is the complete program from soil preparation to flowering. For 30...
Fresh herbs — the underrated superfood that belongs on every meal May 29, 2026Steinkraft GmbH A handful of fresh herbs over food — that's how it's always been. And science now explains why our ancestors were right. Parsley contains more vitamin C than an orange....
HANFKRAFT — the mineral booster that strengthens the cannabis plant from within May 29, 2026Steinkraft GmbH Spider mites. Botrytis shortly before harvest. Yellowing leaves even though everything seems fine. Behind almost all these problems lies the same issue: a plant that is not reaching its full...
Growing Broccoli That Really Works — More Sulforaphane, More Brix, Healthy Soil May 28, 2026Steinkraft GmbH A deep dark green broccoli head with tightly closed florets. Nutty to the bite, packed with sulforaphane. This doesn't happen by chance — it happens in the soil. Here's the...
Broccoli — the most researched vegetable in the world May 27, 2026Steinkraft GmbH There's a vegetable that has been studied for over thirty years in the laboratories of the world's most renowned research institutes. Johns Hopkins University in Baltimore isolated its main active...
Photosynthesis – Why CO₂ Is the Limiting Factor and What That Means for Your Harvest May 25, 2026Steinkraft GmbH There is a process that drives everything. Without it, no yield, no nutrients, no impressive Brix value. It is called photosynthesis. And for most plants in the world, it performs...
Frequently Asked Questions about Grünkraft Calcium and the Steinkraft Product System May 25, 2026Steinkraft GmbH What is Grünkraft Calcium? Grünkraft Calcium is a mineral foliar fertilizer based on tribomechanically activated calcite and zeolite. The product is manufactured using a sophisticated co-milling process, where calcite (calcium...
Our food is losing nutrients May 23, 2026Steinkraft GmbH Why do tomatoes often no longer taste like they used to? Studies show: Fruits and vegetables have been losing minerals for decades. What the Brix value reveals about this -...
Tomatoes with real lycopene — Step by step to fruit that really tastes like tomato May 16, 2026Steinkraft GmbH A tomato with 10 °Brix doesn't just taste twice as intense as one with 4 °Brix — it also contains twice as much lycopene and vitamin C. Here's the complete...
The strawberry — small, red, irresistible, and secretly one of the most nutritious foods in the world May 16, 2026Steinkraft GmbH Marika goes into the field, picks the first ripe strawberry – a little bit of dirt still on it, that’s fine – and just eats it as is. Winnie does...
Growing high-nutrient carrots—how beta-carotene, Brix value, and soil health are connected May 15, 2026Steinkraft GmbH A carrot with 12 °Brix and deep orange flesh. Crunchy, intensely sweet, with that unmistakable earthy aroma. And six times more beta-carotene than a pale supermarket carrot.That is the goal....
Growing garlic that really works — more allicin, more nutrients, healthy soil May 15, 2026Steinkraft GmbH Garlic from healthy soil contains significantly more alliin—the precursor to allicin. It smells more intense, is more effective, and lasts longer. Here's the complete program from autumn planting to harvest....
Garlic — the Wonder Bulb May 15, 2026Steinkraft GmbH You cut the clove of garlic. You set it aside. You wait ten minutes. Only then does it go into the pan. This small ritual that almost no one knows...
The carrot — the vegetable with the highest beta-carotene content of all vegetable varieties, and why this only applies to real carrots May 14, 2026Steinkraft GmbH There's a simple experiment you can do right now. Buy a carrot from the supermarket and one from a farmer's market or your own garden. Hold them side-by-side. One is...
The Underestimated Queen of the Vegetable Patch — Why Red Onions and Scallions Are True Superfoods May 12, 2026Steinkraft GmbH Goji berries from Tibet. Moringa from India. Yet one of the most nutrient-rich foods in the world has been in every kitchen for centuries. The red onion and its sister,...
Growing Nutrient-Rich Red Onions — The Complete Guide from Soil Preparation to Harvest May 12, 2026Steinkraft GmbH A red onion weighing 125 grams instead of 71 grams. Packed with quercetin and anthocyanins. Measurably more nutritious — proven with a refractometer. This is no coincidence but the result...
Understanding Zeolite in Soil: What Studies Reveal About Plant Growth and Flowering April 07, 2026Steinkraft GmbH When plants visibly come into their strength - Why zeolite works in soil Article Series Understanding Zeolite in Soil This series invites you to delve deeper into understanding zeolite in...
Zeolite, perlite, biochar, or expanded clay – what does your garden really need? April 06, 2026Steinkraft GmbH You're standing in front of the shelf at the garden center or scrolling through an online shop and you see: zeolite, perlite, biochar, expanded clay. All of them somehow promise...
Zeolite for your Lawn – How a Volcanic Mineral Permanently Improves Your Lawn March 28, 2026Steinkraft GmbH For many garden owners, a beautiful lawn is more than just grass. It is a play area, a place of relaxation, and the green heart of the garden. And yet,...
Compost and Zeolite – why this is the best combination for your garden March 27, 2026Steinkraft GmbH Composting is one of the oldest and most sensible gardening methods. You return to nature what you took from it – kitchen waste, grass clippings, leaves, plant material – and...
Balcony Garden & Potted Plants: How Zeolite Transforms Your Balcony into a Mini Garden March 27, 2026Steinkraft GmbH Self-sufficiency on the balcony – is it realistic? "Honestly, I was skeptical - my south-facing balcony was just too hot and everything I planted died.Since I started mixing zeolite into...
Soil Diagnosis: What to do with sandy, loamy, or acidic soil? March 26, 2026Steinkraft GmbH Many gardeners struggle with the same problems for years – and look for the cause in the wrong places. The plant doesn't get enough water, even though you water it...
7 Common Mistakes When Using Zeolite in the Garden – And How to Avoid Them March 24, 2026Steinkraft GmbH Zeolite is not a magic bullet. We say that even though we are truly convinced by this mineral. Because that’s precisely why it's worth being honest: those who use zeolite...
From research to practice: Why zeolite could be the future of agriculture March 16, 2026Steinkraft GmbH Zeolite, a natural mineral, has demonstrated impressive effects on soil quality, water retention, and nutrient availability in recent studies. This versatile material could hold the key to more sustainable and...
💚 When the World Is Upside Down – Why Gardening Helps the Soul March 15, 2026Steinkraft GmbH The world is upside down – that's the motto of the Lower Austrian State Exhibition. Perhaps it's no coincidence that many people are returning to their gardens right now. Studies...
Properly Using Zeolite in the Garden - The Comprehensive Guide for Soil, Raised Beds, Lawns, and Young Plants March 15, 2026Steinkraft GmbH Many gardeners today are looking for natural ways to improve their soil long-term. Zeolite is increasingly coming into focus because its special structure can store water and bind nutrients in...
Rock Dusts in the Garden - Properly Understanding Basalt, Zeolite, Lime, Leonardite, Dolomite, and Other Minerals March 15, 2026Steinkraft GmbH Basalt meal, zeolite, lime, dolomite, or vermiculite – many mineral soil improvers are used in gardens, but their effects differ significantly. While some minerals primarily provide trace elements, others influence...
Zeolite in Raised Beds - How a Volcanic Mineral Can Retain Water and Nutrients in the Bed March 14, 2026Steinkraft GmbH Many raised beds dry out faster in summer and lose nutrients over time. A volcanic mineral is therefore increasingly becoming the focus of garden research and practice: zeolite. Its special...
Zeolite as a Soil Conditioner: What Studies Reveal About Soil Structure and Soil Life March 14, 2026Steinkraft GmbH Fertile soil thrives on good structure and active soil life. Scientific studies show that zeolite can stabilize soil structure and create favorable conditions for microorganisms. A look at the research...
Understanding Zeolite in Soil: Studies Show Improved Water Retention in Plants March 14, 2026Steinkraft GmbH Many garden soils lose water faster than plants can use it. Studies show that zeolite can improve the water retention capacity of soils and help plants better withstand dry periods....
Understanding Zeolite in Soil: How Studies Show Plants Absorb Nutrients Better March 14, 2026Steinkraft GmbH Can a natural mineral help store nutrients in the soil and better nourish plants? Scientific studies show that zeolite acts like a natural nutrient reservoir and can reduce losses in...
Bread from stones – Julius Hensel's vision and why mineral fertilizer is more relevant today than ever. March 10, 2026Steinkraft GmbH In his 1894 work "Bread from Stones," Dr. Julius Hensel demonstrated that rock flour sustainably improves soil fertility. A look at its history and its significance for zeolite and natural...
Best natural water storage: Discover the power of vermiculite February 20, 2026Steinkraft GmbH Drought in the garden? No longer a problem! Learn how the magic of vermiculite and BODENKRAFT PLUS water-storage pellets can moisturize your dry soil and help your plants thrive.
Why soils are losing their diversity February 13, 2026Steinkraft GmbH Why are soils worldwide losing their diversity? This article provides a scientifically sound analysis of how monocultures, humus depletion, and structural loss weaken soil fertility – and why regenerative gardening...
Studies on zeolite in the garden – What does science really say? February 12, 2026Steinkraft GmbH Is zeolite in the garden just a trend – or scientifically sound? Studies in agricultural science and soil science show surprisingly clear results regarding nutrient retention, water management, and soil...
A healthy garden with natural products: Why you should rely on zeolite and lime February 05, 2026Steinkraft GmbH In our blog, you'll discover the revolutionary benefits of zeolite and lime for your garden. Learn how our products Grünkraft Calcium, Grünkraft Zeolith Pur, and Veggikraft help you increase your...
🌷 The Garden in Spring: How to Create Healthy Abundance in the Soil February 04, 2026Steinkraft GmbH Spring feels like a promise.The earth softens again, the light brightens, the first plants carefully show that something new is beginning. In the garden, this special moment arises where everything...
Gardening in spring: Why healthy soil is crucial now February 03, 2026Steinkraft GmbH Spring is the moment when everything in the garden seems to begin anew. Buds swell, the first plants appear, the earth smells alive again. But while our gaze goes upwards...
Discover Sustainability: The 10 Best Blogs for an Environmentally Conscious Life February 01, 2026Steinkraft GmbH1 comment Sustainability is more than just a trend—it's a way of life. To support you on your journey toward a more environmentally conscious everyday life, we've compiled a list of the...
🍂 Autumn gardening: Soil care with natural helpers October 16, 2025Steinkraft GmbH Discover how to optimally care for your garden in autumn and prepare it for the coming season. Our natural products will help you create healthy and fertile soil. Experience the...
Nourishing the Earth: A Guide to RÖSL Vital Soil Improvers Leonardite and Cleo Mineral Clay October 12, 2025Steinkraft GmbH Discover the power of nature with RÖSL Vital soil amendments – an innovative solution for promoting soil health. The blog explores the close connection between soil vitality and our own...