Glenarn Gardens

Glenarn Gardens, near Helensburgh

This sheltered woodland garden overlooking the Gareloch at Rhu is famous for its collection of rare and tender rhododendrons, together with fine magnolias and other ericaceous trees and shrubs.

A miniature Himalayan glen runs through Glenarn Garden full of large-leaved rhododendrons, ferns and naturalised plants such as narcissus and primulas. The large rock garden is built round the old quarry and natural rock outcrop, providing habitats for smaller plants such as meconopsis, erythroniums, dwarf rhododendrons and many bulbs in season.
Restoration of the dry stone walls continues and there are new paths and planting ongoing in the rock garden. There are beehives near the vegetable patch and a new shade house and potting shed.

Glenarn 2020 - Normally late March  to September daily but please telephone to confirm, sunrise to sunset, plant stall, limited disabled access, dogs on leads, guided tours and catering for groups booked in advance.


  • Street: Glenarn Road
  • Postcode: G84 8LL
  • City: Rhu, Helensburgh
  • County: Argyll and Bute


  • Telephone: 01436 820493
  • E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


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Garden Location on a Map