Answer: Hyacinths are fairly cold tolerant so you should be able to plant them outdoors soon. Since these came from a greenhouse you will need to acclimate them to the cooler weather. Place them in a cool (above freezing) spot with very bright light and gradually move them outdoors. Keep the soil slightly moist (not soggy) so that the foliage keeps growing; this will rebuild the bulb so it can bloom again next year. Eventually it will naturally yellow and dry and the bulb will go dormant. Plant them in a sunny spot with good drainage. Water them at planting and about once a week if it doesn't rain. Remember that these will only come up and be visible in the spring, so maybe you can tuck them in somewhere. The plants you see sprouting could be perennials waking up for the spring. Enjoy your new garden!
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