Question
I used a piece of copper tubing as a plant stake for a purple passion plant but the plant seems to be dying.  Could the copper tubing be killing my plant?

Answer
Hi there C,

An excess of copper can reach levels that are toxic to plants. However, that is extremely unlikely in this case. Typically, it happens in copper lined planters where there is no drainage hole and the toxic copper levels buildup over the course of several years or more. Overuse of fertilizer can also cause the copper to leach into the soil.

There are other more likely causes, including inadequate light, improper watering and improper pot size. I cannot hazard a guess as to which it might be because you haven't provided much information. I will say, that Purple Passion should be kept tightly potted; it needs lots of direct sunlight; and the soil should be watered whenever it is dry to the touch on the surface.

Of course it is personal choice, but Purple Passion is usually grown as a hanging or trailing plant without the use of any stakes to keep them upright.

Please let me know if any of this is unclear or if you have any additional questions.

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Regards,
Will Creed, Interior Landscaper
Horticultural Help, NYC