Thanks for your help, fruitnut. I'm a little concerned, as it's a lovely tree and is the focal point of my favorite garden (not to mention the fact that I was really looking forward to fresh peaches this summer!) I Googled some images of peach tree conditions and diseases, but I can't seem to find anything that looks like my tree. The tree looks like how I'd expect it to appear in autumn, what with the red and yellow leaves.

Hi All: I just bought myself a nice little Gardenia tree of the Veitchii variety. I've killed them before but I'm determined to grow at least one in my lifetime. I've found this while searching for care information on the web. Its from a California Nursery so the care should be applicable to us. GARDENIAS Soil Acidic, moist, well drained. Use an azalea/camellia type mix when conditioning soil. Light Filtered light inland, full sun on the coast. Water Evenly moist, never too wet or too dry. Adopt a consistent watering schedule. Fertilizer Use a fertilizer for acid loving plants once a month Spring-Fall. Gardenias love iron, also. Feed with iron after main flowering season. Problems Yellow leaves and leaf drop Changes in weather or soil moisture levels. Some leaf drop is normal in early spring before buds begin to appear. Yellow leaves with green veins Iron chlorosis. Feed with chelated iron or iron sulphate. Flower or bud drop Usually cold weather or inconsistent watering. Gardenias like warmth and even moisture. Tiny black or green insects on buds or leaves Aphids, spray with Ultra-Fine. Leaf tips and edges browning Salt accumulation. Leach the plant with water thoroughly. Leaves turn brown Too dry. Gardenias like to be evenly moist. Varieties of Gardenias: AUGUST BEAUTY 5 tall and 3 wide Large double white flowers May - November Heavy bloomer MYSTERY 6-8 tall 4-5" Very large flowers May-July Tends to have an open growth habit. Prune to keep neat. RADICANS 6-12" tall and 2-3 wide 1" double, white flowers. Summer bloom Small scale ground cover or container plants VEITCHII 3-4 ½ tall and wide 1 ½" white flowers May  November and through warm winters Heavy bloomer WHITE GEM 1-2 tall and as wide Dwarf plant with single, fragrant flowers Great in containers, raised beds. Blooms often. Courtesy of Sperling Nursery 24460 Calabasas Road, Calabasas CA (818) 591-9111

when we moved in (2013) she seemed fine, last year she started looking like crap. I dont remember her looking bad in 2014, but maybe I was not paying attention. I did finally find this after much searching tonight. Most website will tell you the tree is relatively pest free, but I found this. http://mrec.ifas.ufl.edu/lso/SCOUT/key.pdf Key Plants, Key Diseases Key Insects/Mites Key Nematodes Tabebuia Tabebuia spp. Algal spot - Cephaleuros virescens Leaf spots - Cercospora, Corynespora spp. Black twig beetle Scale, several species Tabebuia leafhopper Holopothrips near inquilinus Root-knot nematodes Meloidogyne spp. maybe I can find something that can help her out.

Those yellowed leaves look like older leaves, in which case this is normal. If you are worried about salt buildup, flush the soil with plenty of water, perhaps 5 gal. How often one needs to water depends on, among other things, the nature of the soil mix and the amount of rain that falls. In my case, during the summer, I water only the trees in 5-1-1 mix about once a week and the ones in gritty mix about twice a week.