Yucca Cane The Mellow SF Plant your poppies when it's cold! Poppy seeds require a period of cold to germinate and grow, so they generally do best when planted in the late fall or early spring. Aeonium Lily Pad Perfectly Rooted Succulents Here's a quick guide to starting long day Onions from seed. For more guide & growing tips go to plantedinthegarden.com, Long day onions need 14 16 hours of daylight to form bulbs and are ideal for Distinctive spiral foliage rosette of the hardy succulent National Plant of Lesotho, Aloe polyphylla Stock Photo Alamy