Blocking weep screed

[tomh]

You really need to address the drainage issue in your garden in a way that water is directed away from the house. The drain holes are there to allow water to escape rather than being retained in the siding or migrating into the interior of the wall. The consequences of plugging the weep screed can lead to all kinds of health, safety, and durability problems. The weep screed is designed to let water out to prevent damage. If water is getting in, fix the drainage.

We are led to assume water intrusion in your home results from ponded water from the garden backing up against the house. It is more likely your water problem comes from above, and you just made it worse You need to trace teh problem to its source…infiltration through the stucco, a leaking gutter, roof, siding,or window flashing. By sealing the drain designed at the base of the siding where it meets the foundation, you could force water to accumulate behind the stucco, and flow into the house, or cause hidden deterioration, rot or mold. Fix the drainage

Did I mention fix the drainage?