About John-Paul Friend Expertise I have knowledge of most areas of this subject, after research and study. I specialise in construction, law and planting, but will have a go at any question.
Experience I have studied the subject at length, as part of my degree in Landscape Architecture. I have also participated in the construction of rock features.
Education/Credentials BA Hons in Landscape Architecture, HND in Garden and Landscape Design. Currently studying for an MA and postgraduate Diploma in Landscape Architecture. I have also worked with builders and clients in the creation of rock features.
Question This was a general purpose fertilizer. There has not been a change in temperature since I used the fertilizer and I do feel that there is a direct correlation between feeding the plants and the yellowing. I am a bit concerned, since I have nursed them all summer with the hope of having a good show next spring. These plants have never flowered for me yet and I don't want to lose them. I expected GOOD results from using fertilizer not this!
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The text above is a follow-up to ...
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I live just outside Birmingham Alabama. I planted several mixed varieties of creeping phlox round my mailbox last spring, they have survived the hot summer but they are now turning yellow. Are they dying, or is this normal at this time of the year? A few days ago I fed them along with my azaleas. (I always feed my azaleas at this time of year for a wonderful spring showing) they seem to have turned yellow since the feed, what has gone wrong please, and what can I do to correct the problem?
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Hi and thanks for the question. This particular species, Phlox subulata, Likes to be kept in lightly acid to alkaline soil. Depending on the fertilizer you used the effects on the pH of the soil will be different. Also, this change in leaf colour could be down to a change of temperature. This is perfectly normal and yellow leaves do not need to be removed immediately. For best growth plant in a sunny area with free draining soil. Fertilize every 4 months with slow-release Osmocote or fertilize every few weeks with Plant-tone or Miracle Gro. Prune after flowering for a healthier plant. I hope this is of some use. Thanks again for your question.
Answer Hello again and thanks for your follow up. Since there has been no change in temperature it indicates that the leaf yellowing can more likely be attributed to the fertilizer. The likelihood is that the fertilizer is slightly more acidic then the Phlox likes and has created a less than perfect growing medium. You could try using a less acidic fertilizer, but I would recommend no feeding for the time being, just water and waiting. If the leaves begin to regain their colour then you may be ok. It may even be that rather then the fertilizer it is the existing soil or surrounding plants that have caused the problem. Perhaps a snap frost or cold night? As I say the best thing to do in my opinion is make sure the soil is free draining and wait to see what happens. Sorry I cant be more specific. Thanks again for your question.
