Arbnet | Home

Error message

Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseStatementEmpty::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /mnt/www/html/mgrieblertest/docroot/includes/database/database.inc).

Deprecated function: Return type of DatabaseCondition::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 1652 of /mnt/www/html/mgrieblertest/docroot/includes/database/query.inc).

Deprecated function: Creation of dynamic property MergeQuery::$condition is deprecated in MergeQuery->__construct() (line 1344 of /mnt/www/html/mgrieblertest/docroot/includes/database/query.inc).

Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (line 1865 of /mnt/www/html/mgrieblertest/docroot/includes/database/query.inc).

Welcome to ArbNet, an interactive, collaborative, international community of arboreta and tree-focused professionals. ArbNet facilitates the sharing of knowledge, experience, and other resources to help arboreta meet their institutional goals and works to raise professional standards through the ArbNet Arboretum Accreditation Program.

SUBSCRIBE to the Quarterly Newsletter.

The 2020 BGCI/ArbNet Partnership Programme is currently closed! Check back to read more about grant winners!

Are you creating a cemetery, city or university arboretum? Check out our “Toolkits” on our Accreditation Resources page! They include numerous resources from our accredited arboreta to help you in creating or building capacity at your arboretum.

Error message

Arboretum Toolkits

What is an arboretum?

Featured Accredited Arboretum