Gleditsia triacanthos is a deciduous tree that grows to a height of 3040 m (98130 ft). it has a spread of 20 m (66 ft). the trunk is typically 2 m (6 ft 7 in) in diameter. the branches are covered in thorns up to 10 cm (4 in) long. the leaves are pinnate, with 1119 oval leaflets. the flowers are small and yellow, and are borne in racemes up to 30 cm (12 in) long. the fruits are brown, leathery pods up to 30 cm (12 in) long, which contain three to five seeds.
Related plant:
Gleditsia Triacanthos Sunburst
Related plant:
Gleditsia
About soil condition, the best place for Gleditsia triacanthos is a deep, well-drained, sandy loam with a neutral to slightly acidic pH. It grows best in full sun, but can tolerate some shade. It is not tolerant of salt or drought.
So, like the other plants, Gleditsia triacanthos need sunlight to grow. However, they are not as picky as some other species and can do well in both full sun and partial shade. If you are growing them in an area with less light, you may need to give them a little extra water to make up for the lack of sun.
The temperature condition that is most favorable for the growth of the Gleditsia triacanthos is between 70 and 80 degrees Fahrenheit. However, it can also tolerate a range of temperatures, from 50 to 90 degrees Fahrenheit. Despite its wide tolerance, the Gleditsia triacanthos prefers to grow in warmer climates.
Ideal humidity condition for this plant is around 50%. If the humidity gets too low, the leaves will start to drop and the plant will become extremely stressed. If the humidity gets too high, the leaves will start to turn yellow and drop off.
For the fertilizer, this plant prefers a 12-6-6 or 10-10-10. The roots are quite fibrous and are not difficult to grow. They do not like to be disturbed, so it is best to plant them in their final location.
Pruning is an important part of caring for your Gleditsia triacanthos. Pruning helps to maintain the shape of the plant, and can also help to encourage new growth. When pruning, be sure to remove any dead or damaged branches. It is also a good idea to prune back any branches that are growing out of shape.
Propagation is typically by seed, which is sown in early spring as soon as the ground can be worked. The seed must be fresh in order to germinate; it is best to sow it as soon as it is ripe. The seedlings are transplanted to the field in late spring or early summer. Gleditsia triacanthos can also be propagated by root cuttings and grafting.
Usually, the plant growth rate experiments indicate that the plant's growth is significantly affected by the amount of nitrogen in the soil. The optimum nitrogen concentration for gleditsia triacanthos growth is between about 0.8 and 1.2 percent.
Common problems for this kind of plant are root rot, stem girdling, and powdery mildew. Root rot is usually caused by too much moisture in the soil, which can be a problem if the plant is not getting enough drainage. Stem girdling can be caused by damage to the roots, or by insects that bore into the bark. Powdery mildew is a fungal disease that can be controlled with fungicides.
Source:
Gleditsia triacanthos, honey locust | Trees of Stanford & Environs
Gleditsia triacanthos - University of California, Berkeley
Honeylocust (Gleditsia triacanthos) | Department of Horticulture