Gardenia jasminoides kleim's hardy is a beautiful, flowering plant that is native to Japan. It is named after German botanist Heinrich Carl Kleim. The plant blooms from May to June and its flowers are white with a yellow center. The plant is easy to care for and is drought tolerant.
Related plant:
Hardy Gardenia
Related plant:
Jasmine Gardenia
About soil condition, Gardenia jasminoides kleim's hardy prefers well-drained soil, and will not tolerate wet or soggy conditions. It is also important to make sure that the soil is not too alkaline, as this can lead to yellowing of the leaves. A good way to test soil alkalinity is to use an at-home soil test kit.
Similar to other gardenias, gardenia jasminoides kleim's hardy prefer full sun to partial shade. They will tolerate some light shade, but won't bloom as well in those conditions. They need at least 4 hours of sun each day to produce their signature white flowers.
The temperature condition that is best for gardenia jasminoides kleim's hardy is between 60 and 70 degrees Fahrenheit. This plant does not like it to be too cold or too hot. It is a good idea to keep this plant in a spot that gets some sunlight, but not too much.
Ideal humidity condition for this plant is 50-70%. If the humidity falls below 50%, the leaves will start to drop and the plant will become stressed. If the humidity rises above 70%, the leaves will start to yellow and the plant will become susceptible to fungal diseases.
Regarding fertilizer, usually the plant does best with a little bit of fertilizer in the spring to get it started for the season. However, too much fertilizer can actually damage the plant. As for the roots, they are quite resilient and can withstand a range of different soil conditions.
Pruning is an important aspect of caring for your gardenia jasminoides kleim's hardy plant. By pruning, you can encourage new growth, promote better blooming, and shape the plant to your liking. When pruning, be sure to use sharp, clean shears. Make clean, sharp cuts at an angle just above a leaf node. Avoid pruning during the plant's bloom period, as this can result in fewer blooms.
Propagation of Kleim's Hardy Gardenia (Gardenia jasminoides 'Kleim's Hardy') is best done by rooting stem cuttings taken from the plant in late spring or early summer. Cuttings should be 4-6 inches long and taken from new growth. The bottom leaves of the cutting should be removed and the stem cuttings should be placed in a propagation tray or pot filled with a moistened soilless potting mix. The tray or pot should be covered with a clear plastic lid or bag to maintain high humidity. After 2-3 weeks, the gardenia stem cuttings should have rooted and can be transplanted into 4-inch pots filled with a well-draining potting soil.
Usually, the plant growth rate is considered slow to moderate. In general, they grow around 6 inches per year. But, proper care can help them to reach their potential faster. They need full sun to partial shade and moist, well-drained soil to grow well. Water them regularly and fertilize them every few weeks during the growing season to help them reach their full potential.
Common problems for this kind of plant are root rot and scale insects. Root rot is caused by too much moisture in the soil and can be fatal to the plant. Scale insects are small, hard-bodied creatures that feed on the plant's sap, causing the plant to become weak and stunted.
Source:
JC Raulston Arboretum - Our Plants - Gardenia jasminoides 'Kleim's Hardy'
Gardenia jasminoides 'Kleim's Hardy' (Cape Jasmine, Gardenia, Kleim's ...
Gardenia or Cape Jasmine | North Carolina Cooperative Extension