About the genus

Valeriana is a genus of flowering plants in the family Caprifoliaceae, members of which may be commonly known as valerians. It contains many species, including the garden valerian, Valeriana officinalis.

In the garden

Kentranthus sits as a recognised genus in the Caprifoliaceae and is defined by the individual species it contains; identification to species determines both the plant's appearance and the horticultural information you will need. Because the genus-level name covers a range of forms, available plants should be treated on a species-by-species basis: labels, nursery descriptions and herbarium references are the reliable sources for precise details. When preparing to grow any Kentranthus, obtain the full botanical name from the supplier and use that to check light, soil and hardiness notes specific to that species. Reputable nurseries and botanical gardens will list the species epithet and often provide cultivation comments; if a hardiness code is given, translate it into plain terms such as tender, half-hardy or fully hardy before siting the plant. Match the plant’s listed moisture and aspect preferences to a similar spot in your garden rather than assuming genus-level requirements. In the UK, different Kentranthus species will suit different uses — from containers or conservatory display for tender types to outdoor planting where a species is rated winter-hardy. Always confirm the species name of a Kentranthus purchase and follow the species-specific notes for position and protection rather than relying on the genus name alone.

From the Fenn Plants journal

• Notes on DaffodilsWhen to plant daffodil bulbs in the UK, how deep, how to naturalise them in grass, why daffodils stop flowering (“blindness”), and why you should never mix cut daffodils with other flowers.
• Keeping Your NerveHow to garden through a heatwave — the best time to water, why deep soaks beat daily sprinkles, caring for pots and vulnerable plants, and why you can let the lawn go brown.
• Made to LastHow to clean, store and protect garden pots and planters — the frost-proof vs frost-resistant difference, winter care for terracotta and ceramic, and how to reuse a broken pot.