Perfect as a feature plant or espaliered against a wall, Philadelphus is a versatile and low-maintenance addition to your garden. Its stunning flowers and heavenly scent make it an unforgettable favourite for gardeners.
Position
Plant Philadelphus in full sun for optimal flowering, but it can tolerate partial shade.
Prepare Soil
Garden: Any soil type is suitable, including heavy clay, as long as it is not waterlogged. Add a dusting of lime and enrich the soil annually with Bone Meal or Blood & Bone for best results.
Pots: Use a well-draining potting mix and ensure the container has good drainage.
Feed
Garden: Apply a general-purpose fertiliser in early spring to promote healthy growth and vibrant blooms.
Pots: Feed with a liquid fertiliser every 6-8 weeks during the growing season.
Watering & Mulching
Young Philadelphus plants require regular watering, especially during hot summers. Once established, they are drought-tolerant but still appreciate occasional deep watering. Mulch around the base to retain moisture and suppress weeds.
Protection
Philadelphus is frost-hardy, withstanding temperatures as low as -18°C. Ensure proper drainage to avoid root rot in waterlogged soils.
Pruning
Prune immediately after flowering to maintain a neat, airy shape. Remove one-third of the oldest branches annually to encourage new growth. Avoid hedge trimmers, as they can reduce next year’s blooms.
Garden Expert Tip
Philadelphus makes an excellent companion to old-fashioned roses, lilies, and peonies. Place it near walkways to enjoy its fragrance or use its blossoms as cut flowers. For woody stems, lightly hammer the ends to improve water absorption in vases.
