CLEAN SWEEP, Early - mid-season. (N.A.C. Watson) Loch Alsh x Portnoo. Graceful is the first word that springs to mind with this large, almost round flower. The perianth segments are very broad, white, overlapping at the base and reflexed when mature. The corona is a disc shaped, shallow bowl with a band of brilliant yellow at the rim. An elegant show flower that has great substance and is well supported on a strong stem. First Hillsborough 2012.