Description
GardenAdvice Notes
Philadelphus coronarius ‘Aureus’ is a deciduous shrub that belongs to the family Hydrangeaceae. It is commonly known as Golden Mock Orange or Golden Philadelphus. This plant is known for its bright yellow-green foliage, which gives it a unique appearance in the garden. The leaves are oval-shaped and have a serrated edge.
In the spring, the shrub produces an abundance of fragrant, white, single flowers with a diameter of around 2-3 cm (1 inch). These flowers are borne in clusters at the tips of the branches and are pollinated by bees and other insects. The flowering period lasts for several weeks and is a great source of nectar for pollinators.
Soil type-Philadelphus coronarius ‘Aureus’ prefers well-drained soil that is rich in organic matter. It can tolerate a range of soil types, including clay, loam, and sandy soils, as long as the soil is not waterlogged. It prefers a slightly acidic to neutral soil pH, ranging from 6.0 to 7.5. If the soil is heavy and poorly drained, adding organic matter such as compost, leaf mold, or well-rotted manure can help improve soil structure and drainage. It is also important to ensure that the soil is moist but not waterlogged, as this can lead to root rot and other problems.
Regular inspection and maintenance can help prevent and control pest and disease problems.
Propagation-Philadelphus coronarius ‘Aureus’ can be propagated by several methods, including hardwood cuttings, softwood cuttings, and layering.Hardwood cuttings are usually taken in late autumn or winter when the plant is dormant. Cuttings should be about 20-25 cm (8-10 inches) long and taken from the current season’s growth. Remove any leaves from the lower half of the cutting and dip the cut end in rooting hormone before planting in well-draining soil or a rooting medium such as perlite or vermiculite. Keep the cuttings in a warm, bright location, and water them regularly until they root and start to produce new growth.
Softwood cuttings can be taken in late spring or early summer when the plant is actively growing. Cuttings should be about 7-10 cm (3-4 inches) long and taken from the current season’s growth. Remove any leaves from the lower half of the cutting and dip the cut end in rooting hormone before planting in well-draining soil or a rooting medium. Keep the cuttings in a warm, bright location, and water them regularly until they root and start to produce new growth.
Layering is another propagation method that involves bending a low-growing branch to the ground and covering it with soil. After a few months, the branch will produce roots, and it can be severed from the parent plant and transplanted to a new location.
Whichever method you choose, it is important to ensure that the cutting or layering site is kept moist and protected from extreme temperatures until the plant is established.
Pruning, cutting back and dividing-Philadelphus coronarius ‘Aureus’ generally requires minimal pruning, but it can benefit from some occasional maintenance pruning to keep it looking neat and tidy. Here are some guidelines on pruning, cutting back, and dividing this plant:
- Pruning: Philadelphus coronarius ‘Aureus’ can be pruned after flowering in late spring or early summer. Prune out any dead, damaged, or diseased wood, and remove any crossing or rubbing branches to improve air circulation and sunlight penetration. You can also remove up to one-third of the oldest stems to encourage new growth and maintain the shrub’s size and shape.
- Cutting back: If the shrub becomes overgrown or loses its shape, it can be cut back hard in late winter or early spring before new growth begins. Cut back all the stems to within a few inches of the ground, leaving only a few healthy buds or shoots. This will encourage vigorous new growth and rejuvenate the plant.
- Dividing: Philadelphus coronarius ‘Aureus’ does not require dividing, as it is a clump-forming shrub that does not spread by underground runners or rhizomes. However, if you wish to propagate the plant or move it to a new location, you can dig up the entire root ball and divide it into smaller sections, making sure each section has a good amount of roots and shoots. Replant the sections in well-draining soil and water them thoroughly until they are established.
Overall, Philadelphus coronarius ‘Aureus’ is a low-maintenance plant that does not require frequent pruning or dividing. Regular inspection and maintenance can help keep the plant healthy and attractive.
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