5

I have grown a kiwi plant which is growing nicely in my office. Recently, some of it's leaves have developed a red hue.

What is happening here? Do I have to worry?

kiwi

6
  • Has the plant been moved or it's lighting situation changed? Looks somewhat like a sunburnt leaf.
    – GardenerJ
    Sep 5, 2015 at 0:55
  • One and a half months ago I put it in a different room (the window is still in the same cardinal direction as before). Can there really be too much sun inside?
    – mrub
    Sep 5, 2015 at 12:50
  • Plants adapt their leaves to optimize for the light they're in. If their lighting situation changes rapidly it can cause them damage. It can even happen on normally sun-loving plants like Aloes.
    – GardenerJ
    Sep 5, 2015 at 13:37
  • You are saying that it might be a plant equivalent of sunburn due to a change of placement? Could it also have happened without displacement?
    – mrub
    Sep 7, 2015 at 8:17
  • 1
    If there's notably more sun coming through the new window than the old, yes, it's possible. The other possibility that comes to mind might be nutrient deficiencies.
    – GardenerJ
    Sep 7, 2015 at 10:09

1 Answer 1

1

The plant has a low concentration of chlorophyll in those leaves. This can be caused by a number of conditions, which I will list. For a more detailed answer, more details on the plant will be necessary.

  • Too low of a light
  • Not enough soil (too small of a pot)
  • Sudden movement to a far brighter environment
  • Lack of nutrients
  • Natural defoliation (older leaves shedding)
  • Pests (in/on the root zone, stem, or leaves
  • Too low a temperature over an extended period (not frost. Frost damage is more severe)
  • Wrong soil pH

To name some of the more prevalent ones. If you haven't been fertilizing, I would start with an all purpose liquid fertilizer, monthly during the growing season (applied as to the directions of the manufacturer). Keep the plant well watered during the main growing season, but do not allow the soil to sit in water. Allow the top inch of mix to completely dry between waterings over the winter. Do not water with salt softened tap water, or water from a chlorine purification system.

Whenever the roots circle the pot, remove the plant, shake some soil free, an replant in a pot 1 size up, using fresh potting mix. Alternatively, cut the longest roots back and replant in the same pot, using fresh mix. Also prune the top growth to balance.

Allow the plant to receive as much light as possible over the shorter days, and get it morning sun at least, during the summer. If the plant is moved outside during warm weather, place it in an area with full morning sun, and dappled afternoon sun, if you live in a hot area.

And keep an eye out for pests. Routinely check leaf undersides, stem bases, and when repotting, look through the roots. It's better to catch any pest before significat damage is apparent.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.