How to Grow Gardenia Jasminoides Kleim's Hardy - Plant Care & Tips

By NorwichGardener Team   /   2024

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.

How to Grow Gardenia Jasminoides Kleim's Hardy - Plant Care & Tips

Popular name

  • Hardy gardenia
  • Kleim's gardenia
  • Jasmine gardenia
  • Gardenia jasminoides
  • Gardenia

Things to Know

  • Gardenia jasminoides Kleim's Hardy is a popular species of gardenia.
  • It is native to China and Japan.
  • The plant has white, fragrant flowers.
  • Gardenia jasminoides Kleim's Hardy is an evergreen shrub.
  • It prefers full sun to partial shade.
  • The plant is tolerant of a wide range of soils.
  • Gardenia jasminoides Kleim's Hardy is relatively drought-tolerant.
  • The plant is susceptible to a number of pests and diseases.
  • Gardenia jasminoides Kleim's Hardy is propagated by seed or cuttings.
  • It is a popular plant for use in gardens and landscaping.

Related plant:
Hardy Gardenia

Growing Steps

  1. For gardenia jasminoides kleim's hardy, first step is to find a sunny spot in your garden that has well-drained soil.
  2. Once you have found the perfect spot, dig a hole that is twice the width and depth of the plant’s root ball.
  3. Place the plant in the hole and backfill with soil, tamping down as you go.
  4. Water the plant deeply, making sure to soak the root ball.
  5. Once the plant is fully watered, add a layer of mulch around the base of the plant.
  6. Gardenia jasminoides kleim's hardy need to be pruned yearly to encourage new growth.
  7. To prune, simply cut back the plant by one-third its overall size.
  8. Fertilize gardenia jasminoides kleim's hardy every other month using a balanced fertilizer.
  9. These plants are susceptible to pests and diseases, so be sure to keep an eye out for any problems.
  10. With proper care, gardenia jasminoides kleim's hardy will thrive and produce beautiful blooms for years to come.

Related plant:
Jasmine Gardenia

Soil Condition

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.

Light requirement

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.

Good Temperature

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

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.

Fertilizer Requirement

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.

Light requirement

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.

About Propagating

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.

Plant Growth

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.

Basic Problems

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.

List to Know

  • If you live in an area with cool winters, it's best to plant gardenias in spring or early summer.
  • Choose a planting site that receives full sun to partial shade.
  • Prepare the planting bed by adding organic matter such as compost or peat moss.
  • Dig a hole that is twice the width and depth of the gardenia's root ball.
  • Set the plant in the hole so that the top of the root ball is level with the surrounding soil.
  • Backfill the hole with soil and water deeply.
  • Mulch around the plant with an organic material such as pine straw or bark.
  • Gardenias require regular watering, especially during dry periods.
  • Fertilize gardenias monthly during the growing season with an acid-based fertilizer.
  • To encourage blooming, prune gardenias after they finish flowering.

Related Plants

  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
  • Gardenia jasminoides 'august beauty' august beauty gardenia
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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

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