Monarda ‘Petite Delight’ – This introduction from Agriculture Canada was bred at the Morden research station and features bright lavender-pink flowers. It has glossy green foliage that forms a compact rounded dome and has an Earl Grey tea fragrance. This Beebalm is resistant to powdery mildew and works well in containers. Grows 12-15″ high and wide. Zone 3.
Thalictrum rochebruneanum – This Japanese species goes by the common name Giant Meadow Rue and features airy clusters of pale lavender-pink flowers from July to September. These make good cut flowers and are held over bluish-green Columbine-like foliage that usually does not require staking (unless you over-fertilize). Grows 4-6′ high by 2-3′ wide. Hardy to zone 4.
Lavatera x clementii ‘Red Rum’ (syn. Lavatera thuringiaca) – This subshrub is often sold as a perennial and is drought tolerant once established. The blooms (about 2″ wide) are not actually red in colour but a deep magenta-pink, which is unusual for Lavatera. The greyish-green foliage is held on dark red stems. Named after the British racehorse. Grows 4′ high by 2-3′ wide. Zone 6.
Filipendula rubra ‘Venusta’ (syn. ‘Magnifica’) – This RHS Award of Garden Merit winner goes by many common names, including Martha Washington’s Plume, Queen of the Prairie and Meadowsweet. It bears airy panicles of rich pink flowers that fade as they age. ‘Venusta’ requires even soil moisture, making it a good pond-side planting. Grows 4-5′ high by 2-3′ wide. Zone 3.
Achillea ‘Pink Grapefruit’ – This Dutch introduction is part of the Tutti Frutti Series which are more compact in nature. It bears deep lavender-pink domed flower clusters (in June and July) that fade as they age, often giving a bicolor appearance. This Yarrow is a good low maintenance choice for containers and it is also deer resistant. Grows 26″ high and wide. Hardy to zone 4.