Laser trilobum aka Laser

Laser trilobum has the common name Gladich. It is part of the Apiaceae family. This perennial comes from temperate parts of Europe and Asia. Kew gives its native range as east-central and southern Europe to northern Iran. Records also list Turkey, the Caucasus, Lebanon, and Syria. It is not native to Britain or Ireland. Plants For A Future also lists the name Siler trilobum.

The plant grows to about 4 feet [1.2 metres] tall. It lives for more than one year. It does not die once it has set seed. In the wild, it grows at open forest edges. The ground at these sites is rich in lime. These sites give some clues on where to plant it. Plants For A Future suggests sunny wood edges and dappled shade. The evidence gives no width or full account of its leaves. It gives no flower colour or bloom season, either. Each flower has both male and female organs. Insects carry pollen to the flowers. The plant is self-fertile: it can use its own pollen.

Grow it in sun or part shade with moist soil. Plants For A Future lists sand, loam, and clay as suitable. It accepts soil that is slightly acid, neutral, or alkaline. The same source says it copes with very alkaline soil. It suggests the plant prefers soil that drains well and contains lime. These needs fit its wild sites at the edges of woods. That source is unsure how well it withstands British winters. Based on its range, the authors expect outdoor growth across much of Britain. This is an estimate, not a tested hardiness rating.

Reports of food use focus on the stems and seeds. People use the seeds to season food. Few details explain how to prepare them. One account says people drink the water left from cooking the leaves. This does not prove that the leaves themselves are safe to eat. Plants For A Future rates its food value two out of five. It reports no known hazards, but this does not prove safety. It records no uses as medicine. The seeds and umbels, or flower clusters, also yield an essential oil.

There is little information on how to grow new plants. The advice for this species is thus tentative. Plants For A Future suggests sowing seeds in a cold frame in spring. It advises keeping young plants under glass for their first winter. Plant them out in late spring or early summer, once frost risk has passed. The source also suggests spring division, which means splitting the plant. This method is a suggestion, not a confirmed way to grow it. The supplied evidence names no specific pests or diseases.