Mason Bee Houses

Project ARISE is building mason bee houses for San Diego!

Project ARISE is partnering with Build4Bees to provide free mason bee houses to beautify green spaces in San Diego.

Mason bees are excellent pollinators (about 120 times more effective than honey bees). They are non-aggressive and only very rarely sting. Mason bees are crucial to preserving biodiversity because they help plants reproduce!

Our mason bee houses are about 4”x4" and 1 foot tall. They are built by Project ARISE student volunteers and made of western cedar, which is sturdy and durable through outside weather conditions. 

• They need to be screwed onto a garden stake that is hammered into dirt ground. Alternatively, they can be mounted to a fence, wall, etc.

  • Project ARISE can provide a 4 ft garden post to be used for this installation.

• A mud source also needs to be constructed <10-15 ft away from the house for the mason bees to use for constructing their homes.

  • Project ARISE can provide Crownbees mason bee mud mix to create a clay-based mud source.

Project ARISE is providing free mason bee houses for schools, libraries, community gardens, and other public green spaces in San Diego.

You can request a bee house here: