Field guide · PDF
The humidity handbook
What actually raises the humidity around your plants, and what is pure theatre — every trick ranked by the only thing that matters: the points it really adds.
€15incl. VAT
- Instant download — the PDF is yours right after payment
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Prefer the lot? The fern person's pack for €35 — save €10.
Every humidity trick the internet sells, ranked on a €6 meter by sustained points gained — from the humidifier (the only A) to misting (the lifetime-achievement-in-nothing F). Plus the winter chapter nobody warns you about, the mould ceiling, humidity by room, and the one cut-out pot sign that ends the misting argument forever. From someone who misted a calathea for a month and measured exactly no change.
- · 18-page PDF
- · Print-at-home
- · Personal licence
What's inside
- What humidity actually is, and who actually suffers
- Is it even humidity?
- The theatre ranking
- The whole-room answers + the humidifier in full
- The top-ups & the theatre
- Winter, the humidity thief, and realistic winter targets
- Measure it
- Humidity by room
- The mould ceiling
- The humidity year + the cut-outs & your profile
Who's behind this
I'm not a botanist, and I don't have 150 plants — I keep a windowsill's worth, and I've killed a few learning how (a Calathea in eleven days is how this whole thing started). When something goes wrong I go down the rabbit hole: the studies, the extension-horticulture pages, the 2am forum threads, and every horror story plant people send in on @leafjournal on TikTok. These guides are that mix — hands-on experience checked against the research, cleaned up and told straight. No lab, no sponsorships, no “trust me.” Just what actually keeps a plant alive, so yours isn't the one that learns it the hard way.
Best value
The fern person's pack
The fussy, humidity-hungry ones, honestly decoded.
The fern file · The calathea file · The humidity handbook
€35€45
Quick answers
How do I get the guide?
Right after payment you land on a download page, and the link also arrives in your inbox. It's a PDF — read it on your phone, tablet, or print it.
Do I need an account?
No. Your email address is all it takes — that's where the download goes.
What if it's not for me?
Email hello@leafjournal.app within 30 days and you get your money back. No forms, no questions. I'd rather refund you than have you own a guide you don't use.
If this guide doesn't help you, I'll refund it — email hello@leafjournal.app within 30 days and it's done.