There are two types of cracking of tomatoes, longitudinal cracks and radial cracking. Radial cracking is mostly a varietal issue.
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Nitrogen causes stem growth as well as dark green leaf color. Adding only an iron fertilizer or chelate causes the new growth to become green but does not stimulate new growth that much.
Phone apps are good for predicting a possible freeze, but nothing replaces verification that an actual freeze happened. Maximum/minimum thermometers are a good bench check against your phone app or the National Weather Service predictions.
Once a landscape design is finished, the amount of water it needs is fixed. You won’t be able to change the amount it needs, by much, without removing plants or changing them.
It common for the chitalpa tree to partially defoliate in the summer.
Desert willow can look shaggy during the winter because of the brown seedpods that hang from the tree. The seedpods provide a good supply of birdseed for various desert birds during the fall and winter months.
Adding woodchips to the soil as an amendment has gained popularity largely because of social media. Woodchips applied to the soil surface as a mulch is OK, but mixing these into the soil can lead to problems if you aren’t careful.
Horticulture expert Bob Morris answers readers’ questions.
Q: You mentioned controlling borers with chemicals, but can borers in trees be controlled without using chemicals?
Q: Can you give some tips on how to survive this latest bout of heat? Is it simply too hot right now for plants? Is shade cloth the answer?