A Tree Complex

Rebuilding natural habitats and ecosystems


We all know that trees are complex. From their vital role in the carbon cycle to the reduction of air pollution and shelter from the elements. Our relationship with trees is as old as time itself. In fact, human interaction with trees rewards both our mental wellbeing and physical health.

However, it is the unique benefits to the soil and the conditions that host numerous species of flora and fauna that are of particular interest here.

When we refer to trees as a complex, we're suggesting a whole made up of unified structures, in other words, an ecosystem. 😉

Paulownia at 18-months

Based in County Kildare, Ireland, we are a tree nursery providing select tree species from seedling up to two-years-old. Each species is selected for its potential impact in terms of biodiversity.

All species are carefully nurtured in an environment free of artificial fertilisers and pesticides. This level of care and attention means that our supplies are seasonal and limited.

Sea Buckthorn at 4-years

Selected species are now available with more on the way through spring and summer 2021.If you have any questions please get in touch

A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people - Franklin D. Roosevelt

Available Species

Please find below details of the species currently available or in development:


Paulownia seedling


  • "Paulownia elongata"

  • Deciduous

  • C4 carbon fixation plant

  • Fast-growing, adaptable, strong, yet light, hardwood tree

  • Can withstand a wide range of environmental conditions

  • Large leaves enable greater carbon dioxide absorption

  • We offer root cuttings and trees ranging from seedlings to semi-mature trees 4 - 6M in height

  • For discounts on bulk orders please get in touch

  • Available for collection only

  • Video: First-year examples

  • Video: Second-year examples

  • Video: Third-year examples

Sea Buckthorn

  • "Hippophae rhamnoides"

  • A hardy, deciduous shrub

  • Produces fruit high in vitamin C, vitamin E, vitamin B12, carotenoids, flavonoids and beneficial fatty acids

  • Can grow up to 7-meters high

  • Provides an excellent wind-break

  • Nitrogen-fixing

  • Protects against soil erosion

  • For discounts on bulk orders please get in touch

  • Available for collection only

  • Video: Seedling

  • Video: Third-year examples

Sea Buckthorn

Sea Buckthorn seedlings

Monkey Puzzle


  • "Araucaria araucana"

  • Evergreen tree

  • Seeds are edible

  • Reaching heights of up to 40-meters

  • Conservation status: Endangered

  • Long straight trunk, easy to maintain

  • Can live as long as 1,000 years

Monkey Puzzle

Monkey Puzzle seedling

Contact 🌳

If you would like to learn more about our products and services, please get in touch. We'd love to hear from you!

A Tree Complex
Co. Kildare
W23 NP74

© A Tree Complex

Developed by:


Tree graphic (adapted) by ani rofiqah
Evergreen seedling photo by Matthew Smith

Thank you!

We have your order details and will be in touch as soon as your items are ready to collect and/or we're ready to dispatch.If you have any further queries, please don't hesitate to get in touch.Take care from all at ATC 😊