Loebner’s magnolia is a deciduous, erect small tree or large shrub, with slim branches. The crown, vase-shaped in the early years, becomes rounded in maturity. The star-shaped, scented flowers are 10-12 cms in diameter, with an average of 12 narrow white petals, though some forms have far more. Flowering occurs in early May, just before leaf-break.
The best known variety is probably ’Leonard Messel’, which probably had the pink-flowered rosea-form of the star magnolia as one of its parents. ‘Leonard Messel’ is probably the hardiest of the pink-flowered magnolias to have been tested in Finland. There are several other varieties and seedlings under test at Mustila, and time will tell how they develop, but the Loebner’s seems clearly more demanding than the Kobus, so far.