Where to PlantStop killing your plants.
Research-backed growing guides written by specialists and tailored to your USDA hardiness zone.
The most comprehensive plant guides on the internet
Every guide covers zone-specific varieties, planting calendars, soil prep, and the mistakes that actually kill plants — synthesized from university extension research. Written by four specialists who grow what they write about.
Popular Growing Guides
Start here. These are the plants people ask about most.
Tomatoes
The #1 mistake is not the variety — it is the water.
Hydrangeas
Pruning at the wrong time costs you a full year of blooms.
Lavender
It has one rule you cannot break: drainage.
Blueberries
Most bushes die within two years. The fix is soil pH.
Roses
They are not hard. You just have to choose the right one.
Sunflowers
The easiest flower you can grow — if you skip the nitrogen.
Browse All Growing Guides
Every guide includes zone-specific varieties, planting calendars, and the mistakes that matter most.
Vegetables
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Flowers
Our growing guides synthesize research from university extension services across the country — including Clemson, Cornell, UF/IFAS, Michigan State, Penn State, and the University of Minnesota. Every variety recommendation is backed by published cultivar trial data and real-world growing results.