BBC - Gardening: Plant Finder - Mock orange:
Philadelphus (Mock Orange)
Philadelphus x virginalis 'Virginal' has attractive, white, double flowers with an outstanding fragrance in the late spring to early summer season on a 6 to 8 foot tall shrub.
Planting Instructions
Plant container-grown nursery plants from spring through fall. Prepare the garden bed by using a garden fork or tiller to loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost. Dig a hole twice the diameter of the pot the plant is in. Carefully remove the plant from its container and place it in the hole so the top of the root ball is level with the soil surface. Carefully fill in around the root ball and firm the soil gently. Water thoroughly.
Care
Mockorange benefits from regular renewal or rejuvenation pruning. The process typically involves removing one-fifth to one-third of the oldest and largest stems at ground level. Cutting the larger stems encourages vigorous growth from the ground, making the shrub full from the bottom up. Selective pruning also improves the shrub's flowering capacity by allowing more light to reach the interior of the plant.
Philadelphus (Mock Orange)
Philadelphus x virginalis 'Virginal' has attractive, white, double flowers with an outstanding fragrance in the late spring to early summer season on a 6 to 8 foot tall shrub.
Planting Instructions
Plant container-grown nursery plants from spring through fall. Prepare the garden bed by using a garden fork or tiller to loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost. Dig a hole twice the diameter of the pot the plant is in. Carefully remove the plant from its container and place it in the hole so the top of the root ball is level with the soil surface. Carefully fill in around the root ball and firm the soil gently. Water thoroughly.
Care
Mockorange benefits from regular renewal or rejuvenation pruning. The process typically involves removing one-fifth to one-third of the oldest and largest stems at ground level. Cutting the larger stems encourages vigorous growth from the ground, making the shrub full from the bottom up. Selective pruning also improves the shrub's flowering capacity by allowing more light to reach the interior of the plant.
The mock orange - Plants - Blog - gardenersworld.com:
The large, white, deliciously fragrant flowers are what earns mock orange a place in the garden. This variety has double blooms that are produced in loose racemes from early to mid-summer. It is a deciduous, upright shrub that's fully hardy, but very vigorous, so needs to be given plenty of room to grow. The leaves are oval and dark green. To keep plants in shape, cut back shoots to a strong buds every year after flowering. On older plants, also remove roughly a quarter of the oldest branches each year to encourage new growth. To propagate, take softwood cuttings in summer or hardwood cuttings in autumn or winter.
The large, white, deliciously fragrant flowers are what earns mock orange a place in the garden. This variety has double blooms that are produced in loose racemes from early to mid-summer. It is a deciduous, upright shrub that's fully hardy, but very vigorous, so needs to be given plenty of room to grow. The leaves are oval and dark green. To keep plants in shape, cut back shoots to a strong buds every year after flowering. On older plants, also remove roughly a quarter of the oldest branches each year to encourage new growth. To propagate, take softwood cuttings in summer or hardwood cuttings in autumn or winter.
