Timing the transition from seed tray to garden can be difficult because L. Keep the seedlings in full light and follow the basic rules of growing seedlings: rotate your plants so they don’t grow lopsided, don’t water too much, and plant extra because you’re probably going to lose some along the way. And be patient – it can take up to a month for them to germinate. You’ll need to cold stratify them first, by placing the seeds in the refrigerator for four to six weeks before sowing. If you’re a glutton for extra work, you can purchase seeds and start them indoors about 12 weeks before your average last frost date. It does not transplant well after emerging as a seedling, and it can be difficult to get these seeds to germinate in the first place.
spectabilis from seed, this isn’t usually recommended. spectabilis is not considered invasive in these regions because of its brief bloom cycle and tendency to grow slowly in a contained area. Since then, they have become a familiar feature in many European and North American gardens.Īlthough not native to the United States or Europe, L.
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