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Elderberry Care

Elderberries, in the genus Sambucus, are large bushes or shrubs native to the U.S. and Europe. The two most common species are S. nigra (European elderberry), hardy to zones 2-8, growing up an impressive 20 feet tall and S. canadensis (American elderberry), happy in zones 3-8, averaging about 10-12 feet tall. Note the red berries of less common S. racemosa (red elderberry) are poisonous, and the black berries can cause stomach upset if consumed raw.  Elderberries’ chief appeal are the tart blue-black fruits, which are delicious cooked with sugar in syrups, jams, cordials, and even wine. They are used medicinally for immune support. The lovely eight-inch white lacecap flowers preceding the fruit can be used in fritters or fermented. The American species and its cultivars are best for berry production. Newer cultivars of the European elderberry add gold, purple/black, or variegated foliage to the mix, making them real stars in the shrub border. They are very attractive to birds and pollinators.

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Planting Elderberries

Choose a full sun location, with well-drained, moist, fertile soil with a pH between 5 and 6.5. For best berry production choose two varieties of American Elderberry (Sambucus canadensis). Allow 6-8 feet between plants. Incorporate manure and/or compost, but no other fertilizers the first year. Incorporate manure or compost before planting. Plant 2 inches deeper than grown in the nursery pot. Mulch and water well.

Watering Elderberries

Because elderberries are shallow rooted, it’s important to keep them especially well watered the first year or two to establish. Elderberry plants need approximately 1 inch of water each week, from bloom time to the end of harvest. If you are not getting enough rainfall, plants should be irrigated for optimum plant growth and fruit production, even after harvest. They do not tolerate dry spells easily.

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Fertilizing Elderberries

Fertilize each year in early spring.  In their first two years, young elderberry plants appreciate 3 to 4 tablespoons of a high-nitrogen fertilizer. Depending on the plant’s growth, older plants can use 1 to 2 cups – however it’s easy to overdo. Use your judgement.  If your shrub is pumping out consistent new growth and canes, reduce the nitrogen by half or eliminate it altogether. If plants appear healthy but growth is slow, apply the recommended amount. If growth appears poor, increase nitrogen application by half.

Pruning Elderberries

Elderberries need little to no pruning in their first two years. After that, prune yearly in early spring.

  1. First, remove dead, broken and weak canes.

  2. Next, prune out any canes three-years-old or more to encourage new, fruitful canes. 

  3. After three years, productivity of canes declines and they become more susceptible to winter breakage. 

Caring For Elderberries in Pots

First, choose a variety that stays under five feet tall so it will be happy in a container long-term.
Plant with high-quality potting mix and organic matter like compost in a container with excellent drainage. Use a balanced slow-release fertilizer in spring unless it is under two years old, in which case it may appreciate extra nitrogen (see “Fertilizing”). Consistent pruning is needed, especially removing three-year-old canes, to help keep the plant in a pot.

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Winter Care for Elderberries

Elderberries don’t need much in the way of winter care. In autumn, clean up fallen foliage and mulch well, compost if desired. If rabbits are common in your area, consider installing a temporary hardware cloth cage in late November buried in the soil with the branches tied together inside. Remove in mid-April.

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Common Elderberry Questions

If you have any questions, feel free to contact us and we would be happy to help. And your question may end up in this section to help other gardeners as well!



 

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