dahlia problems - Knowledgebase Question

Name: gay ayyagari
fallston, Ma
Question by gay5
June 30, 2010
i purchased a pack of dahlia tubers from home depot and am very disappointed that only one came up. i have had this problem in the past and really think i shouldnt purchase them from you in the future. the one plant that i have seems very weak and slow growing. what can i do to help it along.


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Answer from NGA
June 30, 2010

0

I'm sorry to hear you are having trouble with your dahlia tubers. When starting the tubers, plant them vertically in pots deep enough to cover the crown with 2 inches of soil. Then water them well and set them aside until growth starts. You probably won't need to water again until the tuber sprouts. At this stage, the tuber isn't taking up much water and you need to be careful not to give it too much water and cause it to rot. As for growing conditions, dahlias do best if you wait until the soil has really warmed up before you plant them outside- wait until a week or two after your last frost date. They need consistent soil moisture, but not soggy soil, full sun and a couple of light feeding- over-fertilizing or using a high-nitrogen fertilizer results in fewer flowers. Use a complete fertilzer such as 5-10-5 or fish emulsion.

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