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Succulent dieback can happen due to overwatering

A friend of mine is having trouble with his century plants, agave and cactuses turning yellow in June and July. These plants are in a rock yard with hand watering. They are 2 years old.

Options limited for verticillium-resistant trees in desert

Question: We have a 20-year-old olive tree in our front yard diagnosed with verticillium wilt disease. The north third of the tree appears to be healthy. If we remove this tree, what distance from the old hole is needed for the new tree? We would like a replacement tree to provide shade. We are looking at oak, pine, ash, spruce or fir.

Get pot-bound citrus in the ground

Question: I purchased a lovely Meyer Lemon tree in a 1-gallon pot in the middle of the spring. It already had six lemons on it. I have the original fruit, have new fruit growing and still am getting blossoms. Should I transplant it now into a larger pot or wait until after the fruit ripens and is used?

Rabbit-proofing requires a few tricks

Question: Do you have any solutions for keeping rabbits from eating plants? I live in Sun City Anthem, and they are a real problem. I just planted some lovely gerbera daisies, and they’ve eaten the plants to the ground.

Soil fungi good for plant root health

Question: What are your thoughts on mycorrhizae? I bought some a while back from T&J Enterprises out of Washington state, and the chiles seemed to do really well. Is it an aid or just my imagination?

Asparagus spikes will fern out with patience

I recently purchased an asparagus fern, which now, after a few weeks of tender loving care, has decided to go bonkers. It is sending up spikes of growth with little or no “leaves” on it! Should these be trimmed or left alone and see how they end up?

Arctic Star fruit tree works for focal points

Question: I was reading that you really like the Arctic Star nectarine tree for growing here in Las Vegas. Is this tree a dwarf? How big will it get? What do you think of planting fruit trees in the front yard (not as a focal point, but rather on the side of the house)?

Iris corms tend to be late bloomers

In many cases, an iris needs a year or sometims more to get established before it will bloom. Much depends on the size of the rhizome that was planted and how it was planted.