Help us achieve our goals:
make a donation »
Join the RHS today and
support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Join the RHS today and support our charity
I have forgotten my password
Keep me signed in
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
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:
the RHS today and get 12 months for the price of 9
Other common names
saw-leaved speedwell 'Crater Lake Blue'
Veronica latifolia 'Crater Lake Blue' Veronica teucrium 'Crater Lake'
Veronica can be annuals, perennials or sub-shrubs with paired leaves and small flowers usually in terminal or axillary racemes or spikes
'Crater Lake Blue' is an herbaceous perennial forming a mound to 25cm in height, with toothed, oblong leaves and axillary racemes of intense pure blue flowers 12mm width
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 East-facing or West-facing
MoistureMoist but well-drained
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in loamy, moderately fertile, moist but well-drained soil in full sun or partial shade
Propagate by division in autumn or spring
Suggested planting locations and garden types
Banks and Slopes Flower borders and beds Garden Edging
City & Courtyard Gardens Coastal Cottage & Informal Garden Patio & Container Plants Rock Garden
Pruning Remove spent flowers to encourage compact habit and good flowering in the following year
Pests Generally pest free
Susceptible to powdery mildew
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.
Join the RHS today and get 12 months for the price of 9