Scotland's Gardens

Portrack House © Ming Thein


Portrack, The Garden of Cosmic Speculation


Forty major areas, gardens, bridges, landforms, sculptures, terraces,  fences & architectural works. Covering thirty acres, the Garden of Cosmic Speculation uses nature to celebrate nature, both intellectually and through the senses, including the sense of humour. A water cascade of steps recounts the story of the universe; a terrace shows the distortion of space and time caused by a black hole; a "Quark Walk" takes the visitor on a journey to the smallest building blocks of matter and a series of landforms and lakes recall fractal geometry.

Charles Jencks and his late wife, Maggie Keswick, conceived this unique garden in 1989 and it has been evolving ever since.
More information at


Holywood one and a half miles off A76, five miles north of Dumfries. Please follow signs.

Garden Openings

Sunday 30 April 11:00am - 5:00pm


£10.00, concessions £5.00, accompanied children free. Full price tickets may be purchased in advance by booking online at


Maggie's Cancer Caring Centres receives 40%, the net remaining to SG Beneficiaries

Features & Catering

  • Home-made teas available.
  • Dogs Allowed

Other Details

Parking is in the fields adjacent to the gardens and will be clearly signed from the main A76. Please wear sensible footwear as it can get very muddy in the car park and gardens.

This garden opening is one of the most popular in the Scotland's Gardens calendar, so please bear with us during busy times. We would like to make sure that everyone is parked safely.

The Upper Nithsdale Pipe Band will perform at 1.30pm and 3pm near the teas, weather permitting. Please note the refreshments are limited to teas. Dogs are welcome on a lead.


Charles Jencks



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Scotlands Gardens, 23 Castle Street,
Edinburgh EH2 3DN Tel: 0131 226 3714
Scottish Charity number SC011337
Website Design by Darren Unwin

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