Magnolia Trees
Q.

Magnolia tree, fertilization. Can I use 12-12-12

Zone 45426 | Scwick46 added on September 27, 2018 | Answered

The tree was recently trimmed by so called experts. Next spring tree looked bad and lost leaves early

A.
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drtreelove
Certified GKH Gardening Expert
Answered on September 28, 2018

The poor appearance and leaf loss may or may not be due to the pruning. Excessive crown reduction and/or thinning, removal of more than 25% of the foliage, can be stressful and it takes time to recover.

You can use a 12-12-12 chemical fertilizer, but for the best for your tree, I would prefer if it were a high quality product like this, with organic materials and controlled release nutrients and a full range of major and minor nutrients.
http://www.sustane.com/products/nursery-greenhouse/sustane-12-12-12-90-day

Another organic all purpose fertilizer that is widely available: https://www.domyown.com/dr-earth-organic-all-purpose-fertilizer-p-9485.html

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