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The best time to plant miniature irises is in mid- or late summer, if purchased as a rhizome. The best time for planting miniature iris bulbs is late autumn.
About this Author
Diane Dilov-Schultheis has been writing professionally since 2000. She is a food and travel writer who also specializes in gaming, satellites, RV repair, gardening, finances and electronics. She is a member of the Society of Professional Journalists and has been published online at the Travel Channel and Intel.