Annual, nitrogen-fixing cover crop that is well-suited to dry, rocky, or infertile soils. Introduced from Turkey, it has become a common pasture plant in California. Rose clover will take more heat than Crimson Clover, grows more strongly in cold weather, matures earlier, and is usually lower-growing. For pastures and vineyards, it is usually sown in early fall to overwinter with natural rainfall. In irrigated situations where it will get some water and shade, it can be sown in late summer for winter cover, or used as an understory plant in summer. Freezes out below 10 degrees F.