Ornamental grasses are versatile and low-maintenance plants that can add texture, movement, and beauty to any garden or landscape. They come in various shapes, sizes, and colours, making them a popular choice among gardeners. To ensure your grasses thrive and look their best, read our useful guide below.
Planting your grasses
Choose a suitable location: Most ornamental grasses prefer full sun but can tolerate partial shade. Ensure the area has well-drained soil to prevent waterlogging.
Prepare the soil: Loosen the soil and remove any weeds or debris.
Add organic matter, such as compost, to improve soil fertility and drainage.
Dig the hole: Dig a hole slightly larger and deeper than the root ball of the grass. Space the plants according to their mature size, allowing room for growth.
Caring for your grasses
Establishing new plants: Water newly planted ornamental grasses regularly for the first few weeks to help them establish a strong root system.
Established plants: Most ornamental grasses are drought-tolerant once established. Water deeply but infrequently, allowing the soil to dry out between waterings. This encourages the roots to grow deeper and makes the plants more resilient.
Minimal fertilisation needed: Ornamental grasses generally require minimal fertilisation. However, you can apply a slow-release, balanced fertiliser in early spring to promote healthy growth.
Avoid excess nitrogen: High nitrogen fertilisers can cause excessive leaf growth and may lead to weak stems and flopping. Choose a balanced fertiliser or one with a higher middle number (phosphorus) for better root and flower development.
Maintaining your grasses
In late winter or early spring, before new growth emerges, trim back the old foliage to about 2-3 inches above the ground. This helps remove dead or damaged foliage and allows new growth to emerge cleanly.
Divide and transplant: Every few years, some ornamental grasses benefit from division to maintain their vigour. Dig up the clump, separate it into smaller sections, and replant them. Some ornamental grasses produce attractive seed heads. You can leave them for winter interest or remove them to maintain a neater appearance.
Winter advice for grasses
Leave foliage standing: In colder regions, leaving the foliage intact during winter can provide protection for the crown and roots. It also adds visual interest to the winter landscape.
Trim in early spring: Once the worst of winter has passed, trim back the old foliage to make way for new growth.
Identifying potential issues with grasses
Generally low maintenance: Ornamental grasses are relatively resistant to pests and diseases.
Keep an eye out for signs of aphids, grasshoppers, or fungal diseases. If necessary, treat with insecticidal soap or appropriate fungicides.
Conclusion
Remember that different varieties of ornamental grasses may have specific care requirements. Always check the specific needs of the grass you are growing and adjust your care accordingly. With proper care and attention, ornamental grasses can provide year-round beauty and enhance the aesthetic appeal of your garden or landscape.