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Browse Plants

Narrowed By:Flower Color: Blue+ Seasonal Interest: Fall+ Moisture: Medium to Wet
Displaying 1 - 5 of 5 listings   Sort By: Sort
Hydrangea macrophylla 'Variegata' Hydrangea macrophylla 'Variegata'
(Bigleaf hydrangea, Florist's hydrangea) Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mound-forming shrub has white leaf margins and blue or pink lacecap inflorescences.
Hydrangea serrata Hydrangea serrata
(Mountain hydrangea) (2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species was formerly grouped with the Lacecap hydrangeas because of its flattened flowerheads that consist of central, small florets surrounded by showy, larger florets. It is similiar to H. macrophylla but is a more compact plant with smaller flowers and leaves.
Lobelia siphilitica Lobelia siphilitica
(Blue cardinal flower, Great blue lobelia) Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial has upright leafy stems. From late summer to mid-autumn, it bears dense spikes of light to bright blue tubular, two-lipped flowers with a more prominent lower lip.
Ruellia brittoniana 'Purple Showers' Ruellia brittoniana 'Purple Showers'
(Mexican petunia, Common ruellia, Wild petunia) (7 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This three-foot-tall evergreen shrub bears many tubular, blue or purple, petunia-like flowers on dark stems over a long period. Each flower lasts for just one day. It is a fast grower that may self-seed aggressively. Use in a border, container, or at waterside. Can be grown as an annual in cooler areas.
Salvia uliginosa Salvia uliginosa
(Bog sage) Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This moisture-loving perennial produces clear blue flowers with white highlights in late summer to mid-autumn. It forms an airy clump to 6 feet tall by 3 feet wide, and is great for the back of a border. It is tolerant of heavy soils.

Displaying 1 - 5 of 5 listings   Sort By: Sort