Do I need a trellis for raspberries?

Online Answer
The new shoots (primocanes) of black and purple raspberries need to be pinched when they reach a height of 36 to 48 inches. ... Red, black, and purple raspberries can be supported with a trellis. A trellis keeps the canes off the ground. This is especially important when the plants are laden with fruit.
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The shoots of purple, black, and summer-bearing red raspberries are strictly vegetative during their first growing season. The following year, these same canes flower, produce fruit, and then die. ... All raspberries should be pruned in March or early April.
springEarly spring is the best time to plant raspberries. Choose a planting site that is in full sun. The plants will grow in part shade, but will not produce as much fruit. Raspberries prefer rich, well-drained soil..
The new shoots (primocanes) of black and purple raspberries need to be pinched when they reach a height of 36 to 48 inches. ... Red, black, and purple raspberries can be supported with a trellis. A trellis keeps the canes off the ground. This is especially important when the plants are laden with fruit.
For summer-bearing raspberries, it takes two years for each cane to produce fruit. Individual canes grow vegetatively the first year, produce fruit the second year, and then die. You can cut second-year canes back to the ground after you've harvested all the fruit from it.