What flowers are naturally blue?

[LouisFerdinand]

Sea-Lavender Blooming Flower

https://www.pinterest.com/pin/753508581405305065/

 

[LouisFerdinand]

Bleu Aimable Tulip was first cultivated in 1910.
https://flic.kr/p/bTdCeB

 

[LouisFerdinand]

Stand by Me Clematis

https://www.pinterest.com/pin/11259067803494775/

 

[Logan]

Aquilegia

 

[LouisFerdinand]

Blue Daisy Anemone
https://flic.kr/p/EUhe7

 

[Tess]

Here's a naturally blue flower I saw today! Not sure what it is...

 

[LouisFerdinand]

Here's a naturally blue flower I saw today! Not sure what it is...

@Tess, They are Blue Bachelor Buttons. These are also called Cornflowers.

 

[LouisFerdinand]

Salvia Gentian Sage Cambridge Blue

https://www.pinterest.com/pin/552253973048737569/

 

[Sabina515]

Hydrangeas!!! They are naturally blue based on your soils PH levels. If they start to turn pink, you can add a soil acidifier to your soil to adjust the PH level.

 

[LouisFerdinand]

Blue Butterflies Columbine has purplish blue flowers.

 

[Marck]

My Ten Favourite 'True' Blue Flowers That I've Actually Grown
• Baby Blue Eyes (Nemophila menziesii)
• Blue Milkweed (Oxypetalum coeruleum)
• Cape Plumbago (Plumbago auriculata)
• China Blue Corydalis (Corydalis flexuosa 'China Blue')
• Desert Bluebells (Phacelia campanularia)
• Italian Bugloss (Anchusa azurea)
• Julia Phelps California-Lilac (Ceanothus x 'Julia Phelps')
• Love In a Mist (Nigella damascena)
• Trumpet Gentian (Gentiana acaulis 'Undulatifolia')
• Tuscan Blue Rosemary (Salvia rosmarinus 'Tuscan Blue')

I really wanted to put my Clematis x 'H.F. Young' on the list, but in truth it is only bluish-lavender.

 

[LouisFerdinand]

Baptista Midnight is dark blue.

 

[LouisFerdinand]

Aqua Hyacinth

https://www.pinterest.com/pin/312085449187500475/

 

[Marck]

Tower of Jewels (Echium pininiana) from La Palma in the Canary Islands. I've grown this plant in my Garden. It is arguably my favourite Echium, though there are many fine and flamboyant species in the genus. The flower corolla can be quite blue, but from a distance, the addition of red or pink ancillary parts gives a purple effect.

 

[LouisFerdinand]

Triterleia Aquaris bears deep blue flowers.

https://www.pinterest.com/pin/486881409721968326/