The Q&A Archives: Tetraploid And Diploid Daylily

Question: What's the difference between tetraploid and diploid daylily?

Answer: The usual number of chromosomes in daylily is eleven pairs, this is called diploid. Tetraploids have twice as many. The tetraploid factor emphasizes certain desirable characteristics like large petals, thick petals, bright colors, etc. One big benefit to tetraploids is they can be crossed with other tetraploids. This is of little significance to the home gardener, so the designation of tetraploid or diploid is inconsequential.

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