Polemonium caeruleum aka Jacob's Ladder
Taxonomy ID: 4749
Polemonium caeruleum, also known as Jacob's-ladder or Greek valerian, is a hardy perennial flowering plant that produces cup-shaped, blue or white (sometimes lavender-colored) flowers. It is a member of the Polemoniaceae family, along with annual Phlox and Cobaea scandens. Native to temperate regions of Europe and Asia, it is commonly found in damp woodlands, grasslands, and meadows. The plant's unique, ladder-like arrangement of leaves is a result of the pinnate pattern of leaf formation. Jacob's Ladder is also known as American great valerian, Charity plant, Ladder to heaven, and Make-bate. As a houseplant, Jacob's Ladder is rare but not challenging to grow. It thrives with regular watering and direct light, ideally less than 1 foot from a window. It prefers soil that retains moisture and does not generally require added fertilizers if repotted when it doubles in size.
Common names
Jacob's Ladder, Charity, Greek Valerian, Blue Jacob's LadderMore information about Jacob's Ladder
How difficult is it to take care of Jacob's Ladder
With a bit of knowledge and dedication, you can successfully care for Jacob's Ladder, making it a rewarding choice for those seeking a moderate challenge.
What is the region of origin of Jacob's Ladder
Jacob's Ladder’s native range is Northern and central Europe, including Britain, to Siberia and the Caucasus.
What are the water needs for Jacob's Ladder
Jacob's Ladder should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Jacob's Ladder
Jacob's Ladder is very sensitive to dry soil. To ensure your Blue Jacob's Ladder is thriving and blooming, choose a potting soil that retains moisture. A good soil should still allow for adequate drainage and contain lots of organic matter. Coco coir or sphagnum moss are great soil additives that will help to retain moisture and provide your Greek Valerian with the nutrients it needs for healthy growth. Make sure to mix these soil additives into the potting soil before planting and water the soil thoroughly. By providing your Jacob's Ladder with a well-draining, moisture-retaining soil, you can help to maximize its growth and keep it blooming.
What is the sunlight requirement for Jacob's Ladder
Jacob's Ladder requires abundant, bright, and direct light to thrive. The best placement for this plant is within one foot of a window to ensure it receives enough light. If you live in an area with more extreme weather, such as hot summers or cold winters, you may need to adjust the placement of the plant accordingly. During hot summer months, it is important to place the plant away from full sun, as this can cause the leaves to yellow or burn. During cold winter months, it is best to move the plant closer to the window to take advantage of the extra light that can help it survive. By keeping an eye on the current weather in your area, you can make sure your Blue Jacob's Ladder is always in the right place to thrive.
How to fertilize Jacob's Ladder
The Jacob's Ladder should be repotted when it has doubled in size or annually, whichever comes first. Providing fresh potting soil with all the essential nutrients each year ensures the plant's well-being, eliminating the need for fertilizer. Remember, plants derive their energy from the sun and not fertilizer.
Is Jacob's Ladder toxic to humans/pets?
Ploi lacks confirmed information on the toxicity of this plant. If you, a relative, or your pet accidentally consume plant material with unknown toxicity, it's best to consult a medical expert.
About Ploi
Ploi is the highest-rated plant care app on the App Store with a 4.99-star rating. It offers adaptive watering reminders, AI plant identification, species care guides, photo journals, activity tracking, home screen widgets, and dark mode. The app also supports Apple Watch and provides a native iOS experience. Ploi is also available on Android and web.
