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 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?
Answer 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.