Normally no. Usually one lets the spears grow in spring, harvesting some of them, then letting the rest grow into ferns to make food for the plant during the season so they can survive over winter and grow again next spring. However, there is a method mentioned by the Arizona Cooperative Extension where, if you have a lot of space, for a spring/fall harvest you can grow half of your bed the above way, and half the following way: when the spears appear in spring, do not harvest them—let them grow into ferns. Then in late July, cut the ferns down. This prompts the plant to grow new spears, which you can harvest a certain percentage (just like the spring-harvested method) for a few weeks before the end of the growing season. These fall-harvested crops will always need to be only harvested in fall — you can’t also harvest from them in spring, or you will severely weaken the plants. Hope this helps!
Normally no. Usually one lets the spears grow in spring, harvesting some of them, then letting the rest grow into ferns to make food for the plant during the season so they can survive over winter and grow again next spring. However, there is a method mentioned by the Arizona Cooperative Extension where, if you have a lot of space, for a spring/fall harvest you can grow half of your bed the above way, and half the following way: when the spears appear in spring, do not harvest them—let them grow into ferns. Then in late July, cut the ferns down. This prompts the plant to grow new spears, which you can harvest a certain percentage (just like the spring-harvested method) for a few weeks before the end of the growing season. These fall-harvested crops will always need to be only harvested in fall — you can’t also harvest from them in spring, or you will severely weaken the plants. Hope this helps!