The RHS Advisory Service can help you grow plants, solve gardening problems, identify plants and much more.
A team of RHS Advisors write on a wide range of gardening topics for the online advice search and for the RHS Advice pages in The Garden magazine. You will also find RHS Advisors at many of the gardening shows around the country throughout the year.
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Advice service for RHS members
RHS members can contact the RHS Advisory Service in the following ways:
Email your enquiry to firstname.lastname@example.org. Please always include your membership number. Our typical response time is three to ten days, however some enquiries that need research and analysis do take longer. You can include digital images (up to a maximum file size of 250KB)
Send enquiries and samples to: Advisory Services, RHS Garden Wisley, Woking, Surrey GU23 6QB.
Visit the Members’ Advice Centre in the Plant Centre at RHS Garden Wisley. Open every day, 11am-3.30pm, including bank holidays. The only times we are closed are Dec 21-22; from 12:30pm Dec 24 until 29 inclusive; and Jan 1.
When the Members' Advice Centre is closed, RHS Members can leave enquiries and samples in the box provided in the Wisley Plant Centre during their open hours.
Call 0845 260 8000. Lines are open Monday - Friday, 10am-4pm. However, lines are closed from 12 noon on Dec 24 and on all bank holidays.
Call 0845 260 8000. Lines are open Monday - Friday, 10am-4pm. Please note lines can be very busy.
What information we need
Please state your membership number with all enquiries.
For an accurate diagnosis, explain how the plant was cultivated and when and how a problem developed. Send a selection of roots up to 1cm (0.5in) wide, shoot and soil samples where disease is suspected.
We endeavour to reply in five to 14 days. However, some plant identifications and laboratory tests can take more than three weeks.
PLEASE NOTE: Testing for plant viruses is not available due to the specialised nature of the diagnosis. This service is available to gardeners from the Plant Clinic at FERA (The Food and Environmental Research Agency).