Oxalis stricta (?) or common yellow oxalis annually invades my streetside ground cover plants for about six months, from November through May, and starves them of light, making for very spotty spring growth for the invaded prostrate rosemary, red apple succulent, myoporum, and miniature ice plant cover. They are persistent, nearly alien in their tenacity, and seem to spread by seed, rhizome, and bulblets, so pulling does little good, even in our soft loamy coastal soil in N. California. Since they die out from June to October, letting them take over means barren ground in the summer months. Is there any practical control solution outside of individually digging the thousands of plants? I would guess oxalis is in the clover family, but wouldn't clover control chemicals also damage my four ground cover plants? Thanks for any ideas!
- posted
17 years ago