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Issue with Magnolia (Teddy Bear)

I have had this planted for around 12 months, and it has grown very little. It is producing new growth (so I think root system if healthy) but the leaves are developing spots like in the attached picture and then falling off prematurely. The soil isn't the best draining too. Any advice would be great!

Flowers and Ornamentals • Physical Damage

Magnolias prefer fertile, moist but well drained soil. Magnolias also prefer an acidic soil between 5.0 and 6.0. It can take up to a year for plants to "settle in", but once they do they tend to grow healthier and much faster. However, this plant is very spindly, and the leaves are yellowing. There are probably a few issues at play here including:

- Incorrect soil pH. We recommend testing the pH of the soil. You can acquire pH test kits from most Garden Centres, Bunnings, and other hardware stores such as Mitre 10. We recommend using the pH test kits rather than the pH probes because it will ensure more accurate and reliable results. The soil pH is most likely to be too high (alkaline) and will need to be acidified. this can be treated with Yates Soil Acidifier Liquid Sulfur.

- Lack of nutrients and poor soil quality. Keep plants well fed throughout the year with Yates Dynamic Lifter Soil Improver and Plant Fertiliser.

- Poor drainage. This can be avoided by planting on a gentle sloping mound. Bring in more soil - use a premium organic soil - and mixing in with the existing soil so the top 40 cm of soil is uniform. 



Answered: 13 Aug, 2021

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