Ground Cover Comfrey A creeping comfrey with creamy yellow to white flowers that appear in drooping clusters in mid-Spring to early Summer. This comfrey will spread in time, suppressing surrounding weed growth with its tightly packed cushion of hairy dark green leaves. Symphytum grandiflorum is a valuable early provider for bees and perfect for the wildlife garden. This plant can be very invasive in the wrong place but makes excellent groundcover in the right place. Site: Tolerates some exposureSoil: Well-drained to poorly drainedPosition: Full sun to part shadeSeason of Interest: Perennial, creamy yellow to white flowers in Spring/SummerHardiness: Fully hardyHeight: 1ft (0.3m) Spread: 3ft (1m)+