Tweedia 'Heavenly Blue'
Tweedia 'Heavenly Blue'

Tweedia 'Heavenly Blue'

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One of the truest blue flowers in the garden. Star shaped flowers are produced in clusters above grey-green foliage. A real charmer at the front of the garden border, and a unique accent in floral arrangements. A favourite of pollinators. 

Plant type: annual  

Height: 12-18”

Planting depth: surface sow

Exposure: full sun

Plant spacing: 6” 

Approx seeds per packet: 25

How to sow: 

Sow seeds indoors 6-8 weeks before last frost. Surface sow as light is required for germination. Harden off seedlings and transplant outdoors after last frost. Pinch when 4” tall.


Tweedia is a short-lived perennial in zones 9-10. Grow as an annual elsewhere. For cut flowers, sear stem ends to prevent wilt. Excellent vase life. Deadhead for continuous blooms. 100-110 days to maturity.

Please note that due to export restrictions, we are unable to ship seeds outside of Canada.