Yellow butterfly bush is a plant that is native to China. It is a deciduous shrub that can grow to be about 3-4 meters tall. The leaves are ovate-shaped and the flowers are yellow. This plant blooms from June to September. The fruit is a black capsule.
Related plant:
Ornamental Bush With Yellow Flowers
Related plant:
Yellow Camellia
About soil condition, the yellow butterfly bush requires well-drained soil that is moderately moist. It will tolerate some drought conditions and does not like to have "wet feet." Heavy, clay soils should be avoided.
Similar to other butterfly bushes, the yellow butterfly bush (Buddleja globosa) prefers full sun. It will also tolerate partial shade, but it may not bloom as profusely in these conditions. The bush should be planted in well-drained soil and given occasional watering during extended dry periods. It is generally pest and disease free, although it can be susceptible to powdery mildew in humid conditions.
The temperature condition that is ideal for the yellow butterfly bush is warm and sunny. This plant does not tolerate cold or shady conditions well. If the temperature gets too cold, the plant may die. If the temperature is too hot, the plant may become stressed and produce fewer flowers.
Ideal humidity condition for this plant is around 50%. If the humidity is too low, the leaves will dry out and the plant will become dormant. If the humidity is too high, the leaves will rot and the plant will die.
Regarding fertilizer, this type of plant does not require much. In fact, too much fertilizer can harm the plant. A general-purpose fertilizer that is low in nitrogen can be used. It is best applied in early spring and then again in mid-summer. As for watering, the root system of this plant is not very deep. Therefore, it does not need a lot of water. Watering once a week should be sufficient.
Pruning your yellow butterfly bush (Buddleja) is important to keeping the plant healthy and looking its best. You'll want to prune in late winter or early spring, before new growth begins. Butterfly bushes can be pruned quite aggressively, so don't be afraid to cut back the stems by a third or even half. This will encourage new growth and produce more flowers.
Propagation The yellow butterfly bush can be propagated by taking softwood or hardwood cuttings. To take softwood cuttings, cut a stem that is about 6 inches long from a new growth. Cut just below a leaf node and remove the lower leaves. Dip the cutting in rooting hormone and plant in moistened potting mix. To take hardwood cuttings, cut a stem that is about 6 inches long from a mature plant. Cut just below a leaf node and remove the lower leaves. Dip the cutting in rooting hormone and plant in moistened potting mix.
Usually, the plant growth rate is considered to be quite fast. Under the right conditions, they can even be considered to be invasive. When given the right environment and care, however, they can make for beautiful and aromatic additions to any garden.
Common problems for this kind of plant are root and stem rot, as well as caterpillar infestation. To prevent these issues, it is important to plant the bush in well-drained soil and to keep the caterpillars off the leaves.
Source:
Senna bicapsularis (Butterfly Bush, Christmas Bush, Money Bush ...
Butterfly Bush (Buddleia (Buddleja) davidii) - uaex.uada.edu
Butterfly Bush | Mississippi State University Extension Service