Should Day Lillies And Bulb Lillies Be Kept Away From Each Other? - Knowledgebase Question

Green Harbor, MA
Question by sfrancis3
April 16, 2000
1: Do you have to keep day lillies away from asiatics, orientals, etc.? If so, how far?

2: Will Stargazers planted now bloom this year?

3: I'm afraid I'll kill my dahlia tubers by dividing them. If I plant the entire tubers (which are pretty big), should I prune the emerging plant down to a few stems?

Answer from NGA
April 16, 2000


It is not necessary to separate daylilies (hemerocallis) from your true bulb lilies.

Stargazers should bllom this year if they are of blooming size and are planted in a location well sutied to them.

Dahlia tubers are not all that difficult to divide, simply use a sharp knife to separate the large group of tubers into smaller clumps by cutting the stem, leaving a bit of stem with an eye attached to each group. It's similar to slicing a carrot lengthwise. Perhaps you can find an experienced gardener to show you how to do it.

Allow just one main stem to develop from each clump, and pinch that off to the second pair of leaves when it reaches a point where four pairs of leaves have grown. Then allow only about three or four branches to grow.

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