PWilson

The lower leaf sets turn yellow and brown and are falling

I live in Phoenix. Temp is around 110 and I had to install garden umbrellas to give releif so my new growth would not burn to a crisp. My question is why are all lower leaf sets turning yellow and brown and crispy, and falling off the plants? Their soil is kept at field capacity (watered every 8 hours by drip system). Also, all the blooms have turned to singles. I only have tea's and florabundas, no singles. Please help!

Newt
Greener Thumb
Posts: 1868
Joined: Tue May 25, 2004 10:44 pm
Location: Maryland zone 7

Hi PWilson,
Sounds like your rose has been pruned so that only the rootstock is growing and the graft that was the rose you bought/wanted is gone.

Newt

The Helpful Gardener
Mod
Posts: 7492
Joined: Mon Feb 09, 2004 9:17 pm
Location: Colchester, CT

Your probably not used to fungal issues with the desert climate, but I suspect those wet soil conditions are causing black spot (endemic in nursery raised roses) to become active. You might try to cut the watering schedule down a wee bit and see if that helps; it could very well just be overwatering. Try that first and see if it helps...

Scott



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