Halimium libanotis is a small, compact, evergreen shrub with small, silvery-green leaves and clusters of bright yellow flowers in late spring and early summer. It is native to the mountains of Lebanon and Syria. This plant is drought tolerant and does best in full sun to partial shade. It is an excellent choice for rock gardens, borders, and mass plantings.
Related plant:
Halimium
About soil condition, theHalimium libanotisgrows in a sunny spot with well-drained soil. It doesn't like to be too wet or too dry. This plant is drought tolerant once established. It doesn't need much fertilizer, but it benefits from a yearly application of compost or manure in spring.
Similar to other halimiums, the Libanotis sunflower prefers full sun and well-drained soil. It's a tough and low-maintenance plant that's perfect for hot, dry conditions. Once established, it's quite drought-tolerant. If you live in an area with cool summers, choose a spot in the garden that gets plenty of sun.
The temperature condition that is ideal for the growth of the halimium libanotis is a temperature that is warm but not too hot. This plant is native to the Mediterranean region and thus it is used to a climate that is not too harsh. The plant will do well in a temperature range of 18 to 24 degrees Celsius.
Ideal humidity condition for this plant is around 50%. If the humidity dips below 40%, the leaves will start to turn brown and crispy. If the humidity is too high, around 60% or more, the leaves will start to yellow and will eventually drop off.
The fertilizer, this plant requires, must be low in nitrogen or the plant will produce plenty of foliage but few flowers. A slow-release fertilizer is best. The roots of this plant are very sensitive to waterlogging and over-watering, so make sure the pot has drainage holes and water only when the top layer of soil has dried out.
Pruning is an important part of keeping your halimium libanotis healthy and looking its best. When pruning, be sure to remove any dead or dying branches, as well as any that are overcrowded or rubbing against each other. You can prune your halimium libanotis as needed, but generally, it is best to do so in early spring before new growth begins.
Propagation of the plant is done by rooting stem cuttings. The ideal time to take the cuttings is in late spring. The cuttings should be taken from young, healthy stems that have not flowered. Cuttings should be about 10-15 cm long and should have 2-3 leaves. Cut off the lower leaves and dip the cut end of the stem in rooting hormone. Plant the cuttings in pots filled with moistened potting mix. Keep the pots in a warm, sheltered spot and water regularly. In 4-6 weeks, the cuttings should have rooted and new growth will appear. At this point, you can transplant the young plants to their permanent location.
Usually, the plant growth rate during the vegetative phase is about 20 to 30 centimeters a year. However, during the flowering phase, the growth rate is much slower, about 5 to 10 centimeters a year. Nevertheless, the plant can achieve a height of up to 2 meters.
Common problems for this kind of plant plants are overwatering, pests, and diseases. When overwatering, the leaves of the plant will turn yellow and then brown and drop off. The plant will also become limp and listless. Pests such as aphids, whiteflies, and mites can infest the plant and cause the leaves to turn yellow and drop off. Diseases such as powdery mildew, root rot, and leaf spot can also cause the leaves to yellow and drop off.
Source:
CaliforniaColleges.edu
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