carmeljacques
Newly Registered
Posts: 7
Joined: Thu Jun 14, 2007 6:30 pm
Location: California

Cuphea plant leaves turning brown

Last spring I purchased a cuphea plant and planted it in a large redwood planter in a partially shaded spot on my deck. Since then it has developed lots of new growth along the existing stems and some new stems as well. Recently, however, a lot of the leaves have started to turn brown/grey from the tip of the leaf back. Does anyone know why this is happening? Am I over/under watering (I use a moisture meter and try to keep the plant moist but not wet) or is this normal at this time of the year? There is no indication of any insect infestation.

lillgardnr
Senior Member
Posts: 168
Joined: Wed Jun 13, 2007 4:12 pm
Location: El Dorado, CA.

with browning leaves you should check the ph level of the soil. have you used fert.?

carmeljacques
Newly Registered
Posts: 7
Joined: Thu Jun 14, 2007 6:30 pm
Location: California

I did fertilize using Grow Power Plus which has some added acid (2 % humic acid - used in our area to dissolve the chalk rock which underlies all our gardens). Is it likely that this makes the soil too acidic?

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