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Re: Southern Magnolia Questions
Posted by RonDEZone7a on 6/24/2017, 10:56 am, in reply to "Southern Magnolia Questions"
Fertilizers like Hollytone and MirAcid, while good for Magnolias, are high in Nitrogen so they encourage green growth, rather than flowers. A fertilizer with a high "second" number will encourage flowering. But, as others have said, your magnolias might just be too small to flower heavily. I don't think the part-shade is a problem. Since you are in a marginal location, don't over fertilize and don't fertilize at all after mid-summer (you don't want to encourage last season growth, which will be more vulnerable to winter damage).
Also, as you probably figured out, new leaves are lighter green than older foliage - so they will all turn darker in time.
I'd say you are doing everything right, with fertilizer and location. Southern Magnolias tend to sort themselves out, over time. The longer in the ground, not being disturbed, the better they grow and over-winter... just be patient on the flowers.
USDA Zone 7a / Sunset zone 32 / Heat zone 6
State Tree: American Holly (Ilex opaca)
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