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Out of control grape vine!
On 8/8/13 2:38 AM, Jymesion wrote:
In April of this year, I noticed some grape vines in the bargain bin at the grocery store. Just out of curiosity, I looked at them, and found one which had two buds which were closed but firm (neither dried out nor rotting), so I gambled $1.95 on it. The variety is Niagara. It was from one of those mass-market nurseries. I washed off the 'soil' it came in and let it sit in water overnight. Next day, the buds had opened, and I planted it in the worst possible place, a corner which gets no sun and the soil is building rubble in clay. My only thought was to have "something" in that corner. I figured if it ever grew to 5 feet tall, it'd get some light (narrow porch has windows on both sides). And if it didn't grow, well, it was only 2 bucks. It sat for about a week, doing nothing, and I thought I'd wasted my effort digging a hole for it. Then it took off. By July 1st, it was up to the windows. I'd run strings from the sill down to the ground for it to climb, so I put a trellis over the window for its further growth. Now, each stem goes 5 feet up to the window, 2 feet horizontally across, a foot up, 2 feet across, a foot up, and they're beginning their third pass across. From what I've read about growing/training grapes, you're to trim it back at planting to only one stem and then hope it reaches a 36-inch high wire the first year. This has two stems, each about 12 feet long, with no sign of slowing down! I didn't have a distinct plan in place because I didn't expect it to survive, and I've just been puttering, pinching off side shoots as I tie it to the trellis to train it to go back and forth across the window. I know I'll never get grapes off it (besides lack of light and lousy soil, the squirrels pass over it on their way to the feeder). I only want something reasonably attractive. I'm almost afraid to prune off the tips because if it sends out side shoots, the way it's growing, it'll probably engulf the house! I've looked at more than a hundred sites, and I haven't found a thing about how to train grapes to a trellis purely for decoration, and there's nothing, anywhere, about one which is growing like Little Audrey! At this point, I don't even know what I don't know, so I'm not sure what to ask! One thing I do need to know -- is it safe to just keep weaving it back and forth across the trellis, or will that leave me with nothing but bare trunks next year? Any help appreciated! 'Niagara' is a general-purpose grape, suitable for eating fresh, juice, and wine. Most grapes do not really care about soil; your "worst possible place" with building rubble and clay is likely okay. To control the vine during growing season, keep pinching the tips of some branches and tying the others to the trellis. In the winter, prune severely. After selecting a very few "main" branches, remove the weaker side branches. Trim the remaining side branches to 1 or 2 buds. I hope your trellis is quite strong. A grape vine with maturing fruit can be very heavy. Instead of a trellis, I have steel-pipe fence posts and wire rope to support my vines. See my http://www.rossde.com/garden/garden_grapes.html. Note the use of steel rebar to anchor the ends of the wire rope. If you really do not like where the vine is now growing, cuttings root quite easily. Your plant most likely is a rooted cutting. I'm not really sure as to when or how to take cuttings, but you should be able to research that in a good garden or horticulture book, possibly in a local library. Since 'Niagara' is an American grape (not European), it does not need to be grafted onto root stock. It takes 2-4 years for a newly planted cutting to give fruit. My three vines are from cuttings done by a neighbor. This year -- about five years after they were planted -- one vine still has not given any fruit. The other two each gave me about 3-4 gallons of grapes. -- David E. Ross Climate: California Mediterranean, see http://www.rossde.com/garden/climate.html Gardening diary at http://www.rossde.com/garden/diary |
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