Jacob's Ladder (Polemonium caerulum) organic seeds
- Beautiful inflorescences for cottage gardens and also fresh-moist locations in half-shade and on ponds.
- Contents: Approx. 60 seeds
- Open-pollinated variety, seed tested regularly
Regular price:
€4.59
Product number: POL02-BIO GTIN: 4251420504852
Description
The Blue Jacob's Ladder is a perennial early summer bloomer for semi-shade locations. Its name refers to a biblical passage in which Jacob dreams of a sky ladder. The feathered, elongated leaves of the blue sky ladder - as it is also called in the vernacular - remind a little of the rungs of a ladder.
From June the filigree, delicate sky-blue flowers appear, which can rarely be white. They are very rich in nectar and pollen and attract many bees, bumble bees and butterflies. In Germany, the Jacob's ladder is now unfortunately one of the endangered species. It loves nutrient-rich, fresh and humid locations in semi-shade and likes to stand at the edge of the pond or on embankments. But this beautiful perennial should not be missing in the classic cottage garden either. It is an excellent cut flower for the flower vase.
From June the filigree, delicate sky-blue flowers appear, which can rarely be white. They are very rich in nectar and pollen and attract many bees, bumble bees and butterflies. In Germany, the Jacob's ladder is now unfortunately one of the endangered species. It loves nutrient-rich, fresh and humid locations in semi-shade and likes to stand at the edge of the pond or on embankments. But this beautiful perennial should not be missing in the classic cottage garden either. It is an excellent cut flower for the flower vase.
Plant profile
| Plant type | Container plant, Herbaceous plant |
|---|---|
| Lifecycle | Perennial |
| Species | Polemoniaceae |
| Region of origin | Asia, Europe, North America |
| Characteristics | Food for bees |
| Eventual height | 40-80 cm |
| Flower colour | Blue |
| Flowering months | July, June, September |
| Root system | Rhizome |
| Winter hardiness zones | 7 (-18 bis -12 °C) |
Growing instructions
| When to sow outdoors | May |
|---|---|
| Sowing depth | 1 cm |
| Germination temperature | 15-20°C |
| Climate | Temperate |
| Sunlight | Shade |
| Water requirement | High |
| Planting distance | 50 cm |
| Good companion plants | Common Columbine, Corn Chamomile, Globeflower, Iris, Lady's Mantle |
Sowing and care
Perennial for the natural garden. Pre-culture indoors from February or direct sowing outdoors from May. A slight stratification of the seeds can have a stimulating effect on the germination process. Loves semi-shady locations and fresh to moist soils. A pruning after flowering promotes a second flowering phase in autumn.
Other names
Botanical name: Polemonium caerulum
German: Blaue Jakobsleiter, Blaue Himmelsleiter, Blaues Sperrkraut
English: Jacob's ladder, Greek valerian
French: Polémoine bleue, valériane grecque, échelle de Jacob
Italian: Scala di Giacobbe, Polemonio azzurro, Valeriana greca
Spanish: Valeriana griega, escalera de jacob
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