PHK Ceramics · Knowledge Hub

Learn, Grow
& Create.

A growing library of guides on cactus, succulents, bonsai, soil and handmade pottery — written in the studio, tested on the bench.

Featured · Aug 2026

Why Are Mesembs So Hard to Care For?

Mesembs are some of the most fascinating—and sometimes frustrating—succulents you can grow. From Lithops to Conophytum, these unusual plants have evolved around very specific cycles of water, light, and dormancy. Learn why mesembs can be difficult to grow and how understanding their natural habits can make them much easier to care for.

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A collection of mesembs displayed in handcrafted ceramic pots, showcasing the incredible diversity of this fascinating family of South African succulents—from tiny living stones to sculptural branching species.

Aug 2026 · 5 min read

Mesembs: The Extraordinary Succulents That Don't Look Real

Mesembs are some of the most fascinating succulents in the world, known for their stone-like appearance and incredible adaptations. Learn what defines this unique group of plants, explore popular genera, and discover how to help them thrive.

A collection of Mammillaria cacti displaying the genus' remarkable diversity in spine patterns, growth forms, and clustering habits. Native to Mexico and the southwestern United States, these compact cacti are among the most rewarding species for collectors.

Aug 2026 · 5 min read

Genus Spotlight: Mammillaria

Mammillaria is one of the largest and most diverse cactus genera, loved for its compact size, unique spine patterns, and colorful ring of flowers. Discover what makes these charming cacti so popular, explore notable species, and learn how to grow them successfully in your own collection.

Lithops growing naturally among quartz rocks in South Africa, where these remarkable living stone succulents have evolved to blend seamlessly into their desert habitat.

Aug 2026 · 5 min read

Genus Spotlight: Lithops

Lithops, or Living Stones, are among the world's most fascinating succulents. Learn how these remarkable plants survive in the wild, understand their unique growth cycle, and discover the care tips that will help them thrive in your collection.

Aug 2026 · 5 min read

Genus Spotlight: Astrophytum

Astrophytum are among the most iconic collector cacti, prized for their star-shaped forms, white flecking, and brilliant yellow flowers. Learn about popular species, growing tips, and why these living sculptures have captivated collectors around the world.

Trichodiadema Densum bonsai in a handmade ceramic stoneware pot

Jul 2026 · 5 min read

Succulent Bonsai: The Beauty of Bonsai Without the High Maintenance

Discover the best plants for succulent bonsai, including jade, elephant bush, Adenium, Fokea, and more. Learn how to create beautiful, low-maintenance bonsai using handmade ceramic pots.

Jul 2026 · 5 min read

How to Choose the Right Pot Size for Your Cactus (A Complete Guide)

Choosing the right pot size is one of the most important—and most overlooked—parts of growing healthy cacti. A pot that's too large can hold excess moisture and increase the risk of root rot, while one that's too small can restrict healthy root growth. In this guide, you'll learn how to choose the perfect pot size for your cactus, why drainage and pot shape matter, and how the right combination of a handmade ceramic pot and a well-draining soil mix can help your plants thrive for years to come.

Jul 2026 · 5 min read

Growing Caudiciform Plants: How and When to Raise the Caudex

Learn how to safely raise and expose the caudex of your favorite caudiciform plants over time. This guide explains why gradual lifting creates healthier, more natural-looking specimens and covers the best techniques, pot selection, and growing tips for plants like Adenium, Fockea, Dioscorea, Stephania, and more.

Jul 2026 · 5 min read

Best Cactus Soil Mix

Learn how to choose the best cactus soil mix for healthy cacti and succulents. Discover the best ingredients, drainage tips, and a simple DIY soil recipe.

Jun 2026 · 5 min read

The Biggest Myth About Watering Cactus (And How to Water Them Correctly)

Common Watering Myths Explained