The hot window list

• The south window truth
• The acclimation rule
• 18 scored sun-lover cards
• Scorch vs tan
• The tan lines page
• The summer–winter swing
• Watering the sun shelf
• The sun-lounger cut-outs + the hot shelf plan

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.