Macro-gardens

Macro-gardens are classical provenance trials where seeds are grown to seedlings in the ideal and controlled environment of a nursery. After two years, seedlings are transplanted to an open-air test site and monitored for 5 years.

Types of macro-gardens

One species, small

1 species, 5 provenances, 100 seedlings per provenance (10 families with 10 offspring each).

Total: 500 seedlings distributed over an area of ~125 m2.


Two species, small

2 species, 5 provenances each, 100 seedlings per provenance (10 families with 10 offspring each).

Total: 1000 seedlings distributed over an area of ~250 m2.

One species, large

1 species, 10 provenances, 100 seedlings per provenance (10 families with 10 offspring each).

Total: 1000 seedlings distributed over an area of ~125 m2.


Two species, large

2 species, 10 provenances each, 100 seedlings per provenance (10 families with 10 offspring each).

Total: 2000 seedlings distributed over an area of ~500 m2.

Interested in taking part?

Are you a research institute or an educational institute interested in growing the seeds in your nursery and installing a macro-garden? Get in touch with us by writing an e-mail to info@mygardenoftrees.eu

Please note that participanting institutes will receive dry, non-stratified seeds at the beginning of 2023 or at the beginning of 2024. We expect participants to stratify the seeds and sow them in the nurseries in the following spring.