Phyteuma Plant Growing & Care Guide for Gardeners

Article by Dean Ravenscroft, Ph.D. - Updated 26th Nov 2023

In this Gardener's HQ guide, we'll explore cultivating Phyteuma plants in your garden, indoor spaces, and other settings.

Rampion, Pride of Sussex: Cultivation & Garden Use

Members of the Phyteuma genus are rosette forming hardy perennials.

They have a large range in height from as little as 5 cm up to 90 cm (2 to 36 inches) , this makes them ideal for many different parts of the garden. For best results, use smaller varieties in the rock garden or to fill in the gaps in dry-stone walling.

Phyteuma blooms in the summer, and depending on the species may have spiked or barbed shaped flowers of purple, blue or white.

One of the common names for these plants is Rampion.

Phyteuma nigrum (Schwarze Teufelskralle) by Frank.Vassen.

How to Grow Rampion and other Phyteuma

When growing Rampion outdoors from seeds it is best to start in the spring.

The seeds should be sowed on the soil surface into flats. The flat should then be wrapped in a plastic bag and placed in the fridge for about three weeks.

The flat should then be removed from the plastic bag and sank into the ground in an area of the garden that is fully shaded, and covered with glass to retain humidity.

It should take from between one to three months for the Phyteuma seeds to germinate.

The seedlings should then be transplanted. Locate in a sunny or lightly shaded part of the garden.

If you purchase Rampion from a garden centre, then plant them in the garden in mid spring, when there is no chance of a late frost.

Depending on the Phyteuma species, they should be spaced from 20 cm (8 inches; small) to 45 cm (18 inches; large) apart.

Caring for Phyteuma

Phyteuma plants like to grow in a light, gritty or sandy soil, that is limy and fertile.

The plants are easy to care for, simply water them when in prolonged dry spells. If you require more plants then they can be propagated by division in the autumn.

Common Questions

How many members does the Phyteuma genus contain?

The Phyteuma plant genus contains approximately 40 species.

Do Phyteuma members make a good garden or landscaping plant?

Phyteuma plants are charming additions to rock gardens or borders. They produce intriguing, round flower heads that attract pollinators.

Which Phyteuma species are most frequently grown by gardeners?

The Phyteuma scheuchzeri (Horned Rampion) and Phyteuma orbiculare (Round-headed Rampion) are often grown for their unique, striking blossoms.

Are Phyteuma plants fragrant?

Phyteuma plants are not recognized for their fragrance. Their appeal lies more in their unusual, eye-catching flowers.

What is the perfect location to grow Phyteuma?

Phyteuma prefers sunny to partially shaded locations with well-drained, chalky or sandy soils. They do well in alpine gardens or rockeries.

Is Phyteuma invasive in the USA, if so in which states?

Presently, Phyteuma plants are not classified as invasive in the United States. They're typically grown in controlled garden environments.

How do I remove Phyteuma plants from my garden?

Removal of Phyteuma typically involves digging out the plant, ensuring that all root material is removed to prevent regrowth.

Summary

The Phyteuma genus, part of the Campanulaceae family, contains herbaceous perennial plants. Known as Rampion, these plants are recognized for their unusual, spiked flower heads.

Phyteuma plants thrive best in full sun or partial shade and well-drained soil. They are usually planted in the spring. Ideal for rock gardens, alpine houses, or border fronts, these unique flowers create a distinctive look.

I hope that you enjoyed this guide on how to grow Phyteuma plants. You may also enjoy the following Gardener's HQ growing guides: How to grow Jasione, Cercis canadensis plant, and Lobelia plants.