Prague viburnum is a species of flowering plant in the moschatel family, Adoxaceae. It is native to central and eastern Europe, from Czech Republic and Poland to the Balkans. It is a deciduous shrub growing to 13 m tall. The leaves are opposite, simple, 38 cm long and 26 cm broad, with a serrated margin. The flowers are white, borne in cymes of 3-5 flowers in late spring to early summer. The fruit is a drupe, ripening black in late summer or autumn.
About soil condition, Prague viburnum grows best in moist, well-drained soils, but it is also quite tolerant of average to dry soils, and even clay soils. Prague viburnum will not tolerate wet, poorly drained soils. It has a deep, extensive root system, so it is not particularly drought tolerant once established.
Just like other plants, the Prague viburnum needs sunlight to grow. However, it is more tolerant of shady conditions than other viburnums. It will still produce flowers and berries in partial shade, but it will have a greater flowering display and produce more fruit if it gets at least six hours of direct sun each day.
The temperature condition in Prague is moderate with cool summers and cold winters. The cool summers and cold winters make Prague an ideal place to grow the Prague viburnum. The Prague viburnum is a deciduous shrub that is native to Central and Eastern Europe. The Prague viburnum grows best in full sun to partial shade and prefers well-drained soil. The Prague viburnum is tolerant of drought and salt. The Prague viburnum is a low-maintenance shrub and does not require regular pruning.
Ideal humidity condition for this plant is 50% or less. The Prague viburnum can tolerate lower humidity, but may experience some leaf drop. If the humidity is too high, the leaves will develop spotting and the plant may become more susceptible to diseases.
For the fertilizer, usually the plant does not need much. You can use a slow-release fertilizer or compost in the spring when you first plant it. For the roots, they are very tough and can even handle being in waterlogged soil.
Pruning your Prague viburnum is important to keep the plant healthy and to encourage new growth. You should prune in late winter or early spring, before new growth begins. When pruning, take off any dead or damaged branches, as well as any branches that are rubbing against each other. You can also thin out the plant to allow more light and air to reach the center.
Propagation of the Prague viburnum is typically done through softwood cuttings taken from new growth in the spring. The cuttings should be 4-6 inches in length and placed in a moistened growing mix. After rooting, the new plants can be transplanted into individual pots or into the garden.
Usually, the plant growth rate is dependent on the growing conditions and the quality of care it receives. However, in general, prague viburnum grows relatively slowly. This is why it is important to choose a spot for planting where the plant will have plenty of room to grow over time. With proper care, prague viburnum can live for many years and reach a height of up to 15 feet.
Common problems for this kind of plant are powdery mildew, aphids, and rust. The powdery mildew can be controlled with fungicide. The aphids can be controlled with insecticide. The rust can be controlled with fungicide.
Source:
(DOC) Viburnum | Îgn?zio Saragih - Academia.edu
JC Raulston Arboretum - Our Plants - Viburnum ×pragense 'Decker'
Viburnums | UNL Gardens | Nebraska
