Join the RHS today and support our charitable work
Keep track of your plants with reminders & care tips – all to help you grow successfully
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
the RHS today and get 12 months for the price of 9
Other common names
pennyroyal 'Upright' upright pennyroyal
Mentha are aromatic, rhizomatous perennials with opposite, toothed leaves and small tubular flowers in spikes of whorls in summer
'Upright' is a herbaceous perennial 30cm or more high with mostly upright stems and some prostrate spreading stems, narrowly elliptic to rounded, sharply aromatic, slightly toothed, bright green leaves, to 3cm long, and whorled spikes of lilac flowers in summer; the leaves can be used as a culinary and medicinal herb, but should not be taken by pregnant women; it also acts as an insect repellent
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or West-facing or East-facing or North-facing
Exposure Sheltered or Exposed
MoistureMoist but well-drained, Poorly-drained
SoilSand, Loam, Clay
Time to ultimate height
Grow in sun or partial shade in rich, moist, and preferably sandy, acidic soil
Propagate by division in spring or autumn, or by softwood cuttings, which will root at the nodes if placed in moist compost or water, during the growing season; it may be short-lived, so it is helpful to propagate reserve plants every year
Suggested planting locations and garden types
Flower borders and beds Underplanting of Roses and Shrubs Banks and Slopes
Wildlife Gardens Cottage & Informal Garden City & Courtyard Gardens Mediterranean Climate Plants
Pruning No pruning required
Pests May be affected by caterpillars, leafhoppers, and mint beetle
May be affected by mint rust
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.