Titanium and aluminum are often used as colorants in tattoos; more worrisome, inks using nonmetal colorants may include traces of antimony, arsenic, beryllium, chromium, cobalt, lead, nickel, and selenium (AESI filed over the latter eight metals).
Apply about two ounces of a 5-10-5 fertilizer around each plant. Starting the second season and annually thereafter, fertilize raspberries in early spring before growth begins. Apply a balanced fertilizer, such as a 10-10-10, at a rate of 15 to 20 pounds of fertilizer per 1,000 square feet of planting. If using the hill system, apply about one-half cup per plant. Don't fertilize raspberries in late summer or early fall as it may force new growth that does not harden off properly for winter.
Raspberries grow best when some type of support is provided for the canes. Plants may be planted in hills or hedgerows. Red raspberries will readily spread by root suckers while purple and black do not. If using the hill system, plants are grouped around a strong stake or pole, and then trained to grow on the support.aspberries grow best when some type of support is provided for the canes. Plants may be planted in hills or hedgerows. Red raspberries will readily spread by root suckers while purple and black do not. If using the hill system, plants are grouped around a strong stake or pole, and then trained to grow on the support.