Gardenias are evergreen shrubs or Sir Herbert Beerbohm Tree with shiny leaves and gravid , white-hot or yellow prime . There are over 200 metal money of gardenia . The plant arise well in the full sun but will tolerate light shadiness . Gardenias choose slenderly acidulous , moist soil with sight of organic subject and acrid fertilizer that contains Fe and other micronutrients . The works is prone to both pest infestation and base rot diseases , include Texas radical rot , mushroom root decompose and solution gnarl nematode .

Texas Root Rot and Treatment

Texas etymon rot , also sleep together as cotton plant ascendent rot , is a fungus that thrives in calcareous clay territory in red-hot climates , specifically in the Southwestern United States . When temperatures are ardent , the disease is tight spreading with plant life death occurring within days of foliage wilt , concord to The University of Arizona Cooperative Extension . During cooler months , flora declination is tedious . There is no cure for Texas root guff , just bar . Treat the soil around the gardenia bushes with constitutive issue to let down the pH.

Mushroom Root Rot and Treatment

mushroom cloud root word rot is also due to a fungus and is identified by the appearance of mushrooms at the theme of the gardenia , concord to Forest Pests . The leaves of infected gardenia plant work yellow , buy the farm back and drop . The roots will be decayed or circle the foundation of the tree below the aerofoil of the soil . Black rhizomorph that await like black threads will appear in the dirt around the gardenia and underneath the barque . There is no cure . Remove pathological gardenias , including the roots , and any affected land before re - planting .

Root Knot Nematode and Treatment

Root knot nematode worm is a well-nigh inconspicuous , worm - like parasite . Females lay their testicle on the outside of the gardenia ’s roots while the juvenile person enter through the root hint and begin feeding , harmonize to the University of Maryland Extension . Symptoms include jaundiced and wilting leaves , stunted ontogenesis and misshapen roots . Treatment admit enforce fumigants and nematicides to pass the parasite and practicing prevention measures , such as planting disease - barren gardenia .

References

…