Seeds from this wonderful Alcea rosea Mix. This is a random mixture of many types of hollyhocks, not necessary any of the pictures above. Although technically biannuals if you let these reseed you can have them every year. No pretreatment necessary, just sow seeds just below the soil surface at 70 degrees and water. These semidouble and single blooms and heights 3 to 8 feet tall are all included in this mix. Will produce more flowers in cooler climates. These are biennials that bloom in July to September in full sun.