Monarda Cambridge Scarlet Is An Herbaceous Perennial That Forms A Clump To 90cm In Height, With Aromatic, Bronze-tinged, Lanceolate Leaves And Terminal Whorls Of Deep Scarlet, Two-lipped Flowers.hardy - Very Cold Winter - Hardy In All Of Uk And Northern Europe. Plant Can Possibly Withstand Temperatures Down To -20c (-4f)pests Diseases - Slugs, Particularly In Springtime. Powdery Mildew In Hot Dry Weather.herbaceous - Early In The Year, Typically January Till End Of March, Herbaceous Plants Might Be Supplied In 9cm Pots To Ensure Timely Despatch. - Perennial. Oval, Toothed Leaves To 14cm (5in) Long. Flowers To 5cm (2in) Long Produced In Whorls.monarda Cambridge Scarlet (bee Balm)will Not Tolerate Drying Out In Summer Or Excessive Winter Wetpartial Shade - Light, Dappled Shadefertile Moist Well-drained Soil - Humus-richheight - 90cm (36in)spread - 45cm (18in)flowers July To Augustsupplied In A 1.5 Or 2 Litre Potallow 7 - 14 Days For Delivery