Kale seeds are readily available at most nurseries, and they can withstand cold climates, much like other cabbages. Plant kale seeds in full sun for the best results with gardening help from an urban horticulturist in this free video on plant seeds. Expert: Stan DeFreitas Bio: Stan DeFreitas, also known as Mr. Green Thumb, has experience as an urban horticulturist working for the Pinellas County Extension Service and has taught horticulture at the St. Petersburg College. Filmmaker: Christopher Rokosz