Wednesday, April 11, 2012

In the Grow - Q & A

Q. My rhubarb plant has been blooming and I have been cutting them off, but recently heard that rhubarb leaves are poisonous. Are the flowers poisonous, too? Do I need to wear gloves? What causes them to bloom?

A. The flowers (and the leafy foliage) of rhubarb plant are toxic if ingested, but not generally considered a skin toxin. However, some do find the sap an irritant, so it's always a good idea to wear gloves when gardening.

It does appear that some rhubarb plants are more prone to flowering than others. Old-fashioned varieties, such as Victoria and MacDonald, are heavy seed-stalk producers. Canada Red and Valentine are less likely to bolt. Plant maturity is also a factor, with more mature plants being more likely to bolt than youngsters. Dividing the crowns every 4-5 years should help rejuvenate the planting. And, no doubt, weather also plays a role, as it does seem to be more problematic in some years.  <Read More>

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