Growing straight neck summer squash in a 5 gallon bucket. I know, I know small container for a squash , but i heard i can still make it happen but feeding more 20 Desert Rose Seeds. Mixed Colors. Includes Double and Triple Petals. Adenium Obesum. Etsy 15 Heat Tolerant Annuals That Thrive in Summer Sun 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. How to Plant in Pots