Masterwort: Growing a Rare Mountain Herb in the Garden

In brief: Masterwort (Peucedanum ostruthium) is a perennial herb of the carrot family that grows in the wild on damp mountain meadows and by streams in the Krkonoše and Beskydy mountains. In the garden it likes stony, well-drained but permanently damp soil and a sunny to partially shaded spot – the typical conditions of a rock garden or a foothill herb garden.

Masterwort is one of the lesser-known herbs that you do not commonly meet in every bed. In the wild it grows only rarely, in mountain and foothill locations, so in the garden too it pays to imitate the conditions it is used to – damp, but at the same time well-drained soil that does not stay permanently waterlogged.

The Czech name "všedobr" (roughly "good for everything") refers to an old legend about a plant that was supposed to help with almost everything. Today it is more valuable as an undemanding, interesting-looking herb for a rock garden or a foothill bed than as a medicinal herb for daily use.

What masterwort looks like and where it grows

It is a perennial herb of the carrot family (the same family as carrot, dill or lovage), which forms a dense clump of large, palmately divided leaves and in summer sends up a stem with an umbel of tiny white flowers. In the Czech countryside it grows only rarely, mainly in the higher parts of the Krkonoše and Beskydy mountains, on damp meadows, along streams, in roadside ditches and in scrub.

Position, soil and watering in the garden

A rock garden, a foothill herb garden or a mixed bed with well-drained but fertile soil is suitable for growing it. A stony base ensures that water does not stand and the roots do not rot, but regular and generous watering is also needed – the soil must never dry out completely. A sunny position suits the plant just as well as partial shade, which makes it a suitable candidate also for places among taller perennials where direct sun does not fall all day.

Sowing and establishing the planting

The seeds of plants of the carrot family usually need a period of cold to germinate, so they are best sown in autumn directly in the bed, or early in spring after artificial stratification in the fridge. After germination the plant forms only a ground-level rosette of leaves in the first year and flowers only in later years. Once a clump has established, it divides well in spring or autumn, so you can easily obtain further plants without having to sow repeatedly and wait for the seeds to germinate.

History and traditional use

The rhizome of masterwort was used in the past in folk and veterinary medicine and in the Middle Ages was regarded almost as a cure-all, which is probably where its Czech name comes from. Today the traditional use is taken more as a historical curiosity than as instructions for use – neither the exact dosing nor the safety of home preparation can be verified by the ordinary gardener, and in the wild the plant is also among the rarer species that are better left in their original habitats.

Why not to collect the plant from the wild

Because masterwort occurs in the Czech countryside at only a limited number of sites, it is not recommended to collect it or transplant it from the wild into the garden. If the plant has caught your interest, rather obtain seeds or plants from a verified source – protecting rare mountain species is one of the aims of species conservation in the Czech Republic, and needless loss of individuals from natural populations does not help it. A plant from garden sowing is moreover usually better adapted to lowland conditions than an individual transferred directly from a mountain meadow.

Care during the season

Masterwort is otherwise an undemanding perennial. Over winter the above-ground part dies back and in spring it shoots again from the rhizome; it appreciates mulching with compost in autumn like other mountain herbs. Feeding is not necessary; on stony but fertile soil it grows reasonably lushly even without extra feeding.

During a hot and dry summer, watering has to be watched a little more carefully than for ordinary bed perennials – even a brief drying out of the root ball shows in wilting leaves. On the other hand, permanently waterlogged soil without drainage is just as harmful, which is why it pays to keep a stony, well-drained base even in lowland gardens where it is not naturally available.

Diseases and pests

Masterwort is among the more resistant herbs, and more serious diseases appear on it only rarely in garden conditions. As with other plants of the carrot family, aphids may appear on young leaves, especially in drier periods – it is enough to wash them off repeatedly with a jet of water or treat them with a potassium soap-based product. In permanently waterlogged soil there is a risk of root rot, which you prevent precisely by sufficient drainage of the substrate and possibly a layer of gravel at the bottom of the planting hole.

Use in the garden and in the bed

Thanks to its large palmate leaves and striking white umbels, masterwort also suits as a specimen or background plant in a mixed bed with other moisture-loving perennials, not just in a purely herb garden. Besides the rock garden it also proves itself along water features, where it has constant soil moisture and at the same time enough sun to flower.

Frequently asked questions

Is masterwort the same plant as comfrey or lovage?

No. Comfrey (Symphytum officinale) belongs to the borage family and grows on damp meadows and banks; lovage belongs to the same family as masterwort, but is a different species grown mainly as a seasoning.

Why is the plant called "všedobr"?

The name refers to an old folk notion of the plant as a universal remedy for many ailments. Today this reputation is taken as a historical curiosity, not as a recommendation for use.

Does masterwort also thrive in an ordinary garden bed in the lowlands?

Yes, if you provide well-drained but damp soil and do not let the substrate dry out for long periods. In the lowlands regular watering matters just a little more than in its natural mountain locations.

Is masterwort poisonous?

It is not described as a poisonous plant, but its internal use without consulting an expert is nevertheless not recommended, because the exact dosing and the safety of long-term use have not been verified for home use.

When does masterwort flower?

It flowers in summer, usually from June to August, in the small white umbels typical of the carrot family.

Is masterwort suitable for an ordinary bed, or only for a rock garden?

It works in both places. In a rock garden it appreciates the well-drained, stony layer; in a mixed bed it complements taller moisture-loving perennials well, provided you ensure sufficient and regular watering throughout the season.

Sources

• Wikipedia – Masterwort (Peucedanum ostruthium)
• AOPK ČR – Protection of plant and animal species in the Czech Republic

Updated: 10 October 2026