Grasshopper Services – Sedum Roof Seed Harvesting & Autumn Feeding Guide
As autumn sets in across Ireland, Grasshopper Services leads the way in professional Sedum roof maintenance, helping property owners protect and rejuvenate their living roofs before winter. This is the ideal time of year for Sedum seed harvesting and feeding, ensuring strong regrowth, colour, and resilience for the next growing season.
During this late-season stage, Sedum plants naturally dry and shed their flower heads. Our team carefully harvests the mature seed material from the roof and redistributes it evenly across sparse or thinning areas. This process encourages natural regeneration and creates a more even, dense Sedum blanket. The harvested organic matter acts as a nutrient-rich mulch layer, improving soil biology, moisture retention, and frost protection during the colder months.
Following the harvest, Grasshopper Services applies a carefully balanced winter feed, typically a slow-release fertiliser with a 6-3-13 ratio. This nutrient mix strengthens the Sedum root system while enhancing structural durability and long-term growth. The high potassium (K) content protects the plants from frost and drought stress, while phosphorus (P) supports root development and regeneration. Nitrogen (N) levels remain low to prevent soft growth, which can be vulnerable to winter damage.
This seasonal feeding process plays a crucial role in maintaining a healthy green roof ecosystem. It ensures consistent drainage performance, improves Sedum density, and leads to vibrant spring colouration with stronger flowering across the roof area. With proper autumn care, Sedum roofs can thrive for decades, providing insulation benefits, biodiversity value, and stormwater management advantages year-round.
Grasshopper Services recommends every Sedum roof in Dublin and across Ireland undergo a full harvest and feed program each autumn. This proactive, sustainable maintenance routine preserves roof performance, protects your investment, and enhances the natural beauty of your building.
