When Is The Best Time To Dig Up Iris Bulbs

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Irises need light to bloom and it is important for their growth that they receive full sunlight. Digging up the bulbs during the Spring months (April and May) when you do not know which variety of iris you have can be a frustrating experience, especially if your garden contains many varieties of Iris spp. By digging them in September, 6-10 weeks after flowering has occurred will ensure better germination rates. The best time to dig up iris bulbs are late Summer or early Autumn, approximately 3-4 weeks after flowering has completed or around mid October – December depending on what conditions are like at this time in your locality. If there is any chance of frost then wait until cooler weather before digging up your plants. This way you have the best chances of getting good strong roots with minimal damage due to frost heave