Q.Amaryllis Bulbs
My amaryllis bulbs are approx. 5 years old. Will they still send up a stalk and bloom?
Certified GKH Gardening Expert
It is right there at the age that it can start flowering! To encourage your amaryllis bulbs to bloom, provide proper care, fertilize regularly, prune dead leaves and flowers, re-pot if necessary, and let the bulb rest after blooming. Amaryllis thrive in well-draining soil and need consistent watering, but be careful not to overwater, as this can lead to root rot. Use a balanced, water-soluble fertilizer every 2-4 weeks during the growing season to replenish nutrients. Remove any dead or dying leaves and flowers to promote new growth. If your amaryllis bulb has outgrown its current container, consider re-potting it in a larger pot with fresh soil to give it more room to grow and access to nutrients. After the blooming period, allow the plant to rest for 8-12 weeks by reducing watering and moving it to a cooler location. Following these steps can increase the likelihood of your older amaryllis bulbs producing stalks and blooming.
https://www.gardeningknowhow.com/ornamental/bulbs/amaryllis-hippeastrum/no-flowers-on-amaryllis.htm