Jacob's Ladder (Polemonium caeruleum), also known as the Blue Ladder to Heaven, inspires with its blue (some varieties also white) flowers with bright yellow stamens. The very vigorous, group-forming perennial grows up to 90 centimeters high and is one of the typical cottage garden plants. Planted in the right location, Jacob's Ladders require little maintenance.

Jacob's ladder needs plenty of water

At which location does the Jacob's ladder feel comfortable?

Choosing the right location is essential for plants to thrive - and the sturdy Jacob's Ladder is no exception. The perennial, up to 90 centimeters high, prefers a sunny spot with nutrient-rich, well-drained soil that is not too dry, just like in its natural habitat.

When should you water Jacob's ladder?

Jacob's Ladders have a very high water requirement and find it very difficult to cope with longer periods of drought. Regular watering is therefore essential, especially in summer - especially in sunny locations. If necessary, water the plants both in the morning and in the evening, but the flowers should not be watered. A layer of mulch will help keep the soil from drying out.

Do you have to fertilize Jacob's ladder? If so, when and with what?

Jacob's ladder is quite uncomplicated in terms of its nutritional requirements. It is sufficient to provide the perennial with compost at the beginning of the growth period (approx. March / April, depending on the weather). These gifts can be repeated multiple times throughout the summer. Jacob's ladders in the planter are fertilized with liquid fertilizer. Be careful not to apply the fertilizer to the dry root ball.

How should you cut Jacob's ladders? When is the right time to cut back?

It is advisable to regularly cut out faded flower stalks and withered leaves, this significantly extends the flowering period of the plant. Immediately after the flowering period, a replacement cut is made to about 10 centimeters, then the perennial often sprout a second time. Before the winter break, another cut back to just above the ground.

How to multiply Jacob's ladders?

Jacob's ladders spread themselves very reliably by self-seeding and - in some species - also by rhizomes. Some varieties can also be propagated by division in spring.

Are Jacob's Ladders hardy?

As native plants, Jacob's Ladders are hardy and only need winter protection in a pot culture.

What is the best way to overwinter Jacob's ladders?

In winters with little snow, you should water Jacob's ladders on frost-free days, the plant also needs a lot of moisture in winter.

tips

In addition to a large number of wild forms and their cultivars, there are numerous hybrids. They can be very different in growth height and flowering. 'Lambrook Mauve' is a floriferous perennial to 50 centimeters tall with lilac colored flowers, 'Pink Beauty' has pale lilac-pink, bell-shaped flowers and only grows to about 30 centimeters tall.

Category:

Vegetable garden