How can I enable specific themes and plugins for new blogs that have been created with wpmu_create_blog? I'd like to set the themes and plugins in code rather than having a person manually set them in the network administration section (i.e. not in http://domain/wp-admin/network/site-themes.php?id=xx).


Update: Actually I think I may have figured part of this out. wpmu_create_blog has a $meta property. This property can be set to an associative array with a key of 'allowedthemes'. That key's value should be set to an associative array with keys:values = 'theme-name-or-id':true. I still need to set the starting theme for this blog and set plugins, which must be similar. Is this even a good approach?

3 Answers 3


This WPSE answer led me to the $meta argument for wpmu_create_blog. That led me to this Support thread showing that $meta can include template and stylesheet arguments which seem to contain the folder name for the theme you want (just like the "Template" field in a child theme's style.css head section).

I'm having a hard time finding good documentation on wpmu_create_blog, but hopefully this is enough to work on.


You can use the following code to assign template and stylesheet to a sub site/blog:

// create the blog
$blog_ID = wpmu_create_blog( $domain, $path, $title, 1 );

// assign template and stylesheet to the blog
update_blog_option( $blog_ID, 'template', 'your_template_name' );
update_blog_option( $blog_ID, 'stylesheet', 'your_stylesheet_name' );

This will assign the template and stylesheet to the blog that has been just created. Please visit the following link to see the documentation for wpmu_create_blog function.


Many thanks.

  • I gave the answer to @mrwweb because his answer was written first, but thanks for writing code. Commented May 15, 2012 at 16:26
function mysite_wpmu_new_blog($blog_id)
    switch_theme('my-theme', 'my-theme');

add_action('wpmu_new_blog', 'mysite_wpmu_new_blog');

This works for me!

  • No need to post exactly the same answer two times.
    – fuxia
    Commented Nov 26, 2012 at 12:11
  • sorry, i just want to make sure people do not miss the answers they need.
    – Wint
    Commented Nov 27, 2012 at 3:40

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