Polemonium boreale 'Heavenly Habit' is a compact plant with attractive, ferny foliage and loads of lavender-blue flowers with yellow eyes. It blooms in early summer, and it repeat blooms if deadheaded.
height 12" spacing 15"
Polemonium (Jacob's Ladder) Seeds
Polemonium (Jacob's Ladder) is a hardy perennial that blooms in early summer. It is particularly valued for its shade tolerance. Hardy in zones 3-8.
Sowing Polemonium Seeds
Start polemonium seeds indoors 8 weeks before the last frost date. Barely cover the seeds with soil. Part shade or full sun with moist soil. Easy to grow.
Polemonium caeruleum 'Blue Pearl' has deep lavender-blue flowers on tall stems above ferny foliage. It blooms in late spring to early summer.
Jacob's Ladder is one of the few shade-tolerant perennials that can be grown from seed. It looks especially lovely with yellow foxglove species such as Digitalis grandiflora.
height 24" spacing 15"
Polemonium boreale 'Heavenly Habit' (Jacob's Ladder)
40 seeds $3.50
Polemonium caeruleum 'Blue Pearl'
(Jacob's Ladder)
50 seeds $3.00
Polemonium yezoense 'Purple Rain'
(Jacob's Ladder)
50 seeds $3.25
Polemonium 'Purple Rain' is the first Jacob's Ladder to bloom in spring, appearing with the late daffodils and continuing with Allium 'Purple Sensation'.
Polemonium caeruleum ssp. yezoense 'Purple Rain' was introduced by Jelitto Perennial Seeds in 2006. It has large, violet-blue flowers and finely cut bronze foliage. The species is native to North Japan. Hardy in zones 4-9.
height 20" spacing 15"
