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.
Or you can go a little more rustic, and grow your raspberries in more of a rounded patch. Either way, space red or yellow raspberry plants every 2 to 3 feet. Whether you're planting bare-root or potted plants, the key is to keep the crown of the plant 1 or 2 inches above the ground.Dig a hole based on the size of the root mass, so when you place the plant in the hole, the roots can be nicely spread out. Raspberry plants need full sun to produce the most fruit. 2  The plant will grow in part shade, but harvests will be meager. 3  Space red and yellow types 2 to 3 feet apart; space black and purple types 4 feet apart. 4  Raspberries are self-fertile.