Hardy annuals with blue flowers It's often said that there are few blue annuals but while this may be true of half hardy types, there are plenty of blue hardy annuals. Anagallis 'Blue Light' Yellow-eyed gentian blue; low carpet. 6in/15cm Anchusa 'Blue Angel' Vivid ultramarine blue; bushy habit. 9in/23cm Anchusa 'Blue Bird' Deep indigo, like giant forget-me-nots. 18in/45cm Asperula azurea (Woodruff) Fragrant heads of tiny lavender tinted flowers. 1ft/30cm Centaurea cyanus (Cornflower) 'Blue Diadem' Deep blue cornflower. 3ft/90cm Centaurea cyanus (Cornflower) 'Ultra Dwarf Blue' Wierd tiny cornflower. 9in/23cm Convolvulus (Dwarf Morning glory) 'Blue Ensign' Bright blue, white and yellow eye. 8in/20cm Cynoglossum 'Blue Showers' Pale forget-me-nots; grey leaf. 15in/38cm Delphinium (Larkspur) 'Imperial Blue Bell' Tall, elegant blue larkspur. 4ft/1.2m Felicia bergeriana Orange-eyed blue daisies; spreading habit. 6in/15cm Linum usitatissimum (Flax) Blue flax; flower short-lived but prolific. 2ft/60cm Nemesia 'Blue Gem' Tiny blue flowers cover compact plants. 9in/23cm Nemesia 'KLM' Pretty blue and white bicolour; short season. 9in/23cm Nemophila menziesii (Baby blue eyes) White-eyed, sky blue; hates drought. 6in/15cm Nicandra physaloides (Shoo-fly plant) Pale, bell-shaped flowers; inflated pods. 3ft/90cm Nigella (Love-in-a-mist) 'Miss Jekyll' Classic pale love-in-a-mist; dries too. 18in/45cm Nigella (Love-in-a-mist) 'Oxford Blue' Much deeper blue, taller with dark pods. 3ft/90cm Phacelia 'Royal Admiral' Deep purplish blue bells; loves sun. 18in/18in Phacelia campanularia Bright bells; cut back for second flush. 9in/23cm Viscaria 'Blue Angel' Shining, dark-eyed blue; slender, elegant. 1ft/30cm  Back to Choosing Annuals. Hardy annuals - are for sowing in the garden Half hardy annuals - are for raising indoors or buying in Adapted from The Planting Planner by Graham Rice   ©copyright 1999 Graham Rice. All Rights Reserved. All Images Digitally Watermarked.