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Why are the leaves of my gardenia pucci going yellow and dropping off?

We have planted 8 gardenia pucci standards out the front of our house. The leaves are all dropping off. the leaves are all yellow with spots on them. What can i do

Flowers and Ornamentals • Pests

Dear Joanne,

Sorry to hear that your gardenia standards are not doing so well. There are a number of pests that can attack gardenias. Are the brown spots on the leaves raised and can they be removed by rubbing off? If so, this could be a pest called scale. It is brown in colour and is a sap sucking insect. It can be controlled with a product such as PestOil. Scale can increase in numbers over a period of time so it is best to get it under control so as not to affect the health of the plant. If the leaves are yellowing, this is a sign of nutrient deficiency. It is not unusual for gardenias to have yellow leaves as they are heavy feeders and need to be feed on a regular basis. Try Yates Thrive Natural Roses & Flowers Pelletised Plant Food. It's enriched with Dynamic Lifter and has added nitrogen, phosphorus and potassium to give your flowering plants the right balance of nutrients for their growing needs. is an excellent fertiliser to use. Because your plants are in a stressed situation, we would also recommend an application of Yates Dynamic Lifter Liquid Concentrate. It can be applied over the leaves and around the base of the plant. It is designed to boost stressed plants from the roots up. Also check the drainage of where your gardenias are growing. The soil should be free draining and not waterlogged. If they are in pots, check the drainage holes to make sure they are not blocked. You are welcome to send a photo if are still worried and we would be happy to help further.



Answered: 22 Sep, 2011

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