Common walnut
Juglans regia
Also known as: Persian walnut · Family: Juglandaceae
About this plant
Grown for the nuts, but the roots release a substance that kills many plants nearby. Pick the nuts as the husks split.
Schedule
- water
- every 10–21 days
- fertilizer
- every 273 days
- repotting
- every 5 years
- Light
- Direct sun
- Humidity
- Low
- Temperature
- -25–35°C
Paused for winter
Sources
Every care recommendation cites its source — RHS, Missouri Botanical Garden, IFAS, NC State — instead of being written from memory.