Bonsai Tips with Justin Case ~ Summer Heat

California Bonsai Art

Summer Heat, keeping plants cool

Today is the first day of triple digits for me. This is the first day of many weeks and an endurance race to make sure the plants stay hydrated during this California drought. While the Governor has said the grass must die, container plants can be hand watered as well as watering to keep trees alive. My trees are in containers so I think I’m double protected. There is no doubt that summer heat can play havoc on any plant in a container. Since most bonsai container tend to be dark in color, they attract heat and can send soil temps into the stratosphere. Soil has a good ability at buffering away heat. Add water to that and soil temps even in triple digit heat can stay well below 80 degrees. Soil temps above 90 degrees, roots essentially stop growing. Prolonged contact with soil at…

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