Can You Plant Root Cuttings into Straw Bales?

Root Cutting Basics

• Taking root cuttings is a viable propagation method for some woody ornamentals and herbaceous perennials. Sections of roots removed from plants, such as blackberries or phlox, will either produce new shoots from the cuttings or a new crop of roots, followed by shoots, explain North Carolina Cooperative Extension specialists. Gardeners plant root cuttings from dormant plants either in the ground or in a rooting medium. Any disease- and insect-free substance that supports the cuttings serves as a rooting medium for most cutting types, as long as it holds enough water keeping the cuttings moist and allowing enough air to reach the roots, according to University of Vermont Extension Leonard P. Perry, Ph.D.

Straw Bale Limitations

• Although most anything can grow in straw bales, they are better for some plants than others are, cautions West Virginia University Extension's Alexandria Straight. She notes that typical straw bale plantings are annual vegetable crops. In addition, Oklahoma Extension staff members advise replacing the bales at the end of each growing season. Root cuttings of shrubs or perennials are problematic choices if you don't want to disturb them at the end of a single season.

Maintaining Straw Bale Plantings

• If you place root cuttings into straw bales, watering and fertilizing are critical for maintaining the plantings. Water quickly filters through the bales, so keeping them moist requires continuous irrigation, according to Oklahoma Extension staff. Without soil, root cuttings in bales soon need additional fertilizer. Virtually any fertilizer technique works with bale plantings. Replenish nutrients regularly if you don't use slow-release fertilization, such as through compost.

Root Cutting Alternatives

• Using straw bales for root cuttings might be useful for temporarily growing perennials while preparing a permanent home for these new plants. If you intend to start root cuttings to plant out in spring or summer, however, using a rooting medium allowing you to grow the cuttings on indoors may be a desirable alternative to straw bales. If you already have a place to permanently locate the plants, placing the root cuttings directly in the ground is easier than using straw bales.