Q: You mentioned that male asparagus plants produce more than female asparagus plants. How do you tell the difference?
Bob Morris
Bob Morris is a horticulture expert living in Las Vegas and professor emeritus for the University of Nevada. Visit his blog at xtremehorticulture.blogspot.com. Send questions to Extremehort@aol.com.
Q: I have had a large poinsettia since last Christmas. Is there a way to encourage blooms this year? It seems I read somewhere to put it into a dark place without water for a period of time. Anything you can tell me will help.
Q: I’m composting in plastic trash cans with holes. It’s taking a very long time to make compost, despite adding carbon to my grass clippings and kitchen waste. I water and turn it every few days. What am I doing wrong?
Winter fruit tree pruning starts as soon as leaves drop from the trees. It’s easier to see the branching structure of the tree — I call it the tree’s “architecture” — after the leaves are gone. This is also the time for the major pruning of landscape trees and shrubs.
Q: My son and I are thinking of landscaping his front yard in December. Will plants and trees survive when planted that time of year?
Q: Can I prune fruit trees now, or do I need to wait until they are dormant in January? Will you be giving fruit tree pruning classes again this year?
Q: I live in North Las Vegas and want to plant both a red Bartlett and a Keiffer pear but have limited space. I read about planting two trees in one larger hole. Do you recommend this method?
Q: You wrote about some kind of blanket to wrap your plants with when it gets cold in winter to keep frost from /harming them. Can you tell me where I can buy them?
Q: Do you have a recommended type or brand of asparagus that does well here in Southern Nevada? I read your blog, and you noted the purple varieties are sweeter, but do they grow as well as other types?
Q: We have a nice size pool we must drain for maintenance. Is it safe to use the water for watering plants? We have a small lawn and some raised beds with vegetables.
Q: I cut the lower leaves off my artichoke plant a couple months ago per your suggestion. In fact, my son, who is a pretty good gardener, asked why I cut them off. He comes over and helps me with the vegetables and asked me why I did that.
Q: My Arizona ash tree is about 20 years old. Six or eight limbs have dried up and died within the last couple of weeks. Can you tell me the cause of this and what I can do to prevent more from drying up?
Q: Recently you mentioned that clematis can grow in Las Vegas. I would like to grow these very attractive vines here. Which ones do you recommend?
Q: After 17 years of growing tomatoes, I feel I have depleted most of the nutrients so I am going to dig it up, remove it and replace it with new soil. My idea is to lay down a layer of fruit pulp in a sufficient quantity and then cover with at least 12 inches of planter’s mix. I would do fish guts but I can’t find any quantity. By the 2018 spring planting season, I think I’ll have a super soil. What do you think?
Come and visit me at the Home Improvement and Backyard Expo on Sept. 16-17 from 11 a.m. until 2 p.m. at the South Point. Bring in some plant samples or pictures and let’s talk about them. Would you like a couple of 10-minute classes? I will stay longer than 2 p.m. if anyone wants to chitchat.
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