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University of Nebraska–Lincoln

UNL Extension in Lancaster County

Horticulture

Helping Nebraskans enhance their lives through research-based education.

Success with Raspberries

by Don Janssen, UNL Extension Educator

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As with any fruiting crop in Nebraska the kind and amount of care makes the difference in success and failure at harvest time. The fact that these plants stay alive doesn’t mean they will produce abundant fruit. This is especially true of raspberries.

Raspberries are easily injured by too much fertilizer. Apply no more than 5 pounds of 10-10-10 grade fertilizer per 100 linear feet of row the first year and no more than 10 pounds per 100 feet in subsequent years. Apply fertilizer only in the early spring before flowering. Sprinkle it evenly in about a 3-foot wide band over the row.

Leave the fertilizer on the soil surface because working it in could damage the plants' shallow root system. Avoid using fertilizers containing chlorides.

Plants will need irrigation between bloom and harvest. Water them early in the day. Install a drip or trickle irrigation system to avoid wetting foliage. These systems place the water into the root zone around the plants so they receive the moisture without encouraging weeds or wasting water. Keep the soil evenly moist and not saturated.

Keep about a 3-foot wide strip cultivated around the plants. To avoid injuring roots, cultivate no deeper than 2 inches near the plants. Unlike some other fruit crops, with raspberries it is not a good idea to mulch the row area. Mulch can retain too much moisture and cause root disease problems.

All that is left now is figuring out how to use up all the raspberries you'll be harvesting this year. Good luck.

Raspberries

(This resource was added April 2007 and appeared in the Lincoln Journal Star Newspaper Sunday edition. For information on reproducing this article or using any photographs or graphics, read the Terms of Use statement)

University of Nebraska-Lincoln Extension in Lancaster County is your on-line yard and garden educational resource. The information on this Web site is valid for residents of southeastern Nebraska. It may or may not apply in your area. If you live outside southeastern Nebraska, visit your local Extension office


Contact Information

University of Nebraska-Lincoln
in Lancaster County
Web site: lancaster.unl.edu
444 Cherrycreek Road, Suite A,
Lincoln, NE 68528
| 402-441-7180