FIELD JOURNAL · CAUSEWAY BAY
Care notes & plant-picking guides
Plant care notes from the Plantjai urban lab in Causeway Bay — light, watering, potting mix, and how to choose healthy indoor plants for Hong Kong homes.
Plant 101 · plant picking · home care
- Care basics
- Buying tips
- HK homes
Read a guide first, then WhatsApp us with your light and space — we will suggest what fits.
LATEST
Fresh from the journal
Ten newest guides — care tips, Hong Kong home planting, and curator picks.
Plant Care
Is Your Window Bright Enough? A Home Light Audit
2026 年 9 月 1 日
Compare light at leaf level, understand lux and PPFD, and use a simple observation sheet to choose better houseplant positions in your Hong Kong home.
進階收藏家
Foliage Plant Trend Forecast 2025-2026: What Will Be the Next Hot Varieties?
2026 年 8 月 28 日
Welcome back to the Specimen Archive — this is the final stop on our long journey.… Curator's guide from Plantjai Specimen Archive, Causeway Bay Hong Kong | h
進階收藏家
Tissue Culture and Propagation Industry: Where Do Variegated Plants Come From?
2026 年 8 月 27 日
Welcome back to the Specimen Archive. Today's lesson pulls back the curtain on a topic many plant enthusiasts find fasci… Curator's guide from Plantjai Specim
進階收藏家
Plant Nomenclature: The Logic and Stories Behind Scientific Names
2026 年 8 月 25 日
Welcome back to the Specimen Archive. Today's lesson takes us into a territory many find dry but is actually rich with s… Curator's guide from Plantjai Specim
進階收藏家
International Plant Trade Market Overview: Thailand, Indonesia, and the West
2026 年 8 月 24 日
Welcome back to the Specimen Archive. Last session we discussed building personal collections; today I'm broadening our … Curator's guide from Plantjai Specim
進階收藏家
From Plant Parent to Collector: Building a Meaningful Foliage Plant Collection
2026 年 8 月 23 日
Welcome back to the Specimen Archive. This is the opening chapter of our Advanced Collector's Journey series — if you've… Curator's guide from Plantjai Specim
Pick the plants
The Art of Dish Gardens: Creating Harmonious Green Compositions
2026 年 8 月 22 日
Walk into plantjai.com’s Causeway Bay store and you’ll spot several large dish gardens near the windows that stop people… Curator's guide from Plantjai Specim
Pick the plants
Water Propagation to Soil: Comparing Two Cultivation Methods
2026 年 8 月 20 日
In a corner of the specimen archive sits a glass jar holding a water-propagated pothos. Through the transparent vessel, … Curator's guide from Plantjai Specim
Pick the plants
Plant Gifting Guide: The Perfect Green Gift for Every Occasion
2026 年 8 月 19 日
Last month, a friend moved into her new home, and I showed up with a Spathiphyllum (peace lily). Her eyes lit up — not t… Curator's guide from Plantjai Specim
Pick the plants
Online Plant Shopping vs. In-Store Selection: A Comprehensive Comparison
2026 年 8 月 18 日
I still remember ordering my first Philodendron gloriosum online seven years ago — that cocktail of anticipation and anx… Curator's guide from Plantjai Specim
PLANT BASICS
Plant 101
Care fundamentals — light, watering, humidity, and pests for Hong Kong homes.
Implantation 101
Grow Light Buying and Usage Guide: How Can Artificial Light Replace Sunlight?
2026 年 7 月 16 日
Last winter, something happened in the Archive. A row of Calathea near the window—their normally lush green leaves began… Curator's guide from Plantjai Specim
Implantation 101
Propagation Laboratory: The Principles and Practice of Cuttings, Layering, and Division
2026 年 7 月 15 日
The most exciting moments in the Archive aren't when a new plant arrives—it's when a cut stem produces its first white r… Curator's guide from Plantjai Specim
Implantation 101
Repotting Timing and Techniques: When Should You Give Your Plant a New Home?
2026 年 7 月 13 日
A few days ago, while organising the Archive, I found myself staring at a Ficus elastica (Rubber Plant) for quite some t… Curator's guide from Plantjai Specim
Implantation 101
The Chemistry of Fertilising: NPK and Micronutrients in Plant Nutrition
2026 年 7 月 12 日
Step into the Specimen Archive greenhouse and you'll notice something curious: under the same lighting, with the same wa… Curator's guide from Plantjai Specim
Implantation 101
Soil Media Formulation Science: Crafting Custom “Nutrient Soil” for Different Plants
2026 年 7 月 11 日
Like ingredients in a kitchen, different plant substrates have distinct characteristics and uses. A good formulator (tha… Curator's guide from Plantjai Specim
Implantation 101
Demystifying Plant Root Systems: How to Assess Root Health
2026 年 7 月 10 日
Most people's impression of roots stops at "holding the plant in soil and absorbing water." That's not wrong, but root s… Curator's guide from Plantjai Specim
Implantation 101
A Complete Guide to Indoor Plant Lighting in Hong Kong: Light Management from Dawn to Dusk
2026 年 7 月 9 日
You might think placing a plant by the window solves everything. But in the plant world, light is a precise science. Pho… Curator's guide from Plantjai Specim
Implantation 101
The Science of Humidity Management: Survival Rules for Plants in Hong Kong’s Damp Weather
2026 年 7 月 9 日
Hong Kong sits in the subtropical monsoon zone, where relative humidity regularly exceeds 70% year-round, climbing to 85… Curator's guide from Plantjai Specim
SHOP SMART
Choosing the right plants
Curator tips for picking healthy plants and avoiding common buying mistakes.
Pick the plants
The Art of Dish Gardens: Creating Harmonious Green Compositions
2026 年 8 月 22 日
Walk into plantjai.com’s Causeway Bay store and you’ll spot several large dish gardens near the windows that stop people… Curator's guide from Plantjai Specim
Pick the plants
Water Propagation to Soil: Comparing Two Cultivation Methods
2026 年 8 月 20 日
In a corner of the specimen archive sits a glass jar holding a water-propagated pothos. Through the transparent vessel, … Curator's guide from Plantjai Specim
Pick the plants
Plant Gifting Guide: The Perfect Green Gift for Every Occasion
2026 年 8 月 19 日
Last month, a friend moved into her new home, and I showed up with a Spathiphyllum (peace lily). Her eyes lit up — not t… Curator's guide from Plantjai Specim
Pick the plants
Online Plant Shopping vs. In-Store Selection: A Comprehensive Comparison
2026 年 8 月 18 日
I still remember ordering my first Philodendron gloriosum online seven years ago — that cocktail of anticipation and anx… Curator's guide from Plantjai Specim
Pick the plants
Pot and Planter Aesthetics: The New Trend of 3D-Printed Planters
2026 年 8 月 17 日
I’ve seen too many plant parents keep a thousand-dollar variegated alocasia in a flimsy plastic nursery pot, and it alwa… Curator's guide from Plantjai Specim
Pick the plants
Large Foliage Plant Buying Guide: Placement and Care for Floor Plants—A Practical Guide for Hong Kong Homes
2026 年 8 月 15 日
Last month, a customer walked into the Specimen Archive with a determined look and said: "I want a plant that can change… Curator's guide from Plantjai Specim