CERTIFIED ORGANIC! Trifolium incarnatum. Hardy Annual. Spring sown Crimson Clover blooms in 70-90 days and fall sown plants will bloom in April. This plant is particularly succulent and is easily tilled or hoed under. Remove the tops to the compost, or simply turn the whole plants under. They will be broken down in about ten days, and the soil will be ready for planting nitrogen-loving crops. Plant between late March and early October. 500g covers approximately 179 m2 (1,925 ft²).