Most of the compact magnolia cultivars max out at 20 feet in height.
If your planting location does not offer full sun, select a more shade-tolerant variety.
Also, add peat moss for acidity (magnolias need slightly acidic soil).
The Spruce / Danielle Moore
Good drainage of thepotting soilis equally important.
If the soil seems dense,add some perlite.
Fertilizer
Delay fertilizing for the first few months until the tree is settled.
The Spruce / Danielle Moore
Pruning
Dwarf varieties of magnolias are slow to moderate growers and dont need a lot of pruning.
Prune lightly after the bloom to remove damaged or crossing branches.
check that the container has large drainage holes.
The Spruce / Danielle Moore
Next, add the potting soil.
If the magnolia outgrows its pot, its time to repot it to a larger pot one size up.
Repot the tree in the spring when it has just broken its dormancy.
The Spruce / Danielle Moore
To protect the roots from freezing temperatures, move the container to an unheated garage or shed.
Even if it survives, it may never bloom indoors.
