I Have A Dwarf Weeping Willow With Branch Turning Black, Plz Help.

Question

I had ordered a dwarf weeping willow from a cutting off Amazon and am up to 3 cuttings growing into fine looking plants. The oldest one had problems originally and that one had come with another which turned black and had to be thrown away. This one I spoke to the seller and with some advice it has been brought back to life and is growing well. It has 3 seperate smaller limbs aside from the central trunk, and one has about an inch of black looking outside. The entire plants leaves are curled and some have a few yellow looking spots (the top ones closest to the grow lights). Please help me save this plant, it is indoor grown, no fertilizer and distilled water free of additives.

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Answer 1

If this was planted back into the same infected soil as before, then the infection has spread again. You can attempt to treat the soil, but I would opt for changing the soil out, completely.

Use a mix of 1/4 compost, and 3/4 potting soil. Put it into a container that has a saucer and drain holes, so that all extra water can be thrown out. Sitting water in container will cause soil infections. With such a small root mass, there is a lot of soil in that large container that has no roots through it. This will cause the soil to remain saturated deep down, while looking dry on top, which causes infection.

From here, change the soil and treat with a fungicide. Here are some articles that will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm

https://www.gardeningknowhow.com/ornamental/trees/willow/grow-a-willow-tree.htm