Regional Gardening Reports :: National Gardening Association

Southwestern Deserts

December, 2007
Regional Report

Shows & Events

Plant Clinic
Not sure why your plant has yellow leaves, or want to know what that unusual insect is? If you live in the Tucson area, you're in luck. Retired University of Arizona Plant Sciences Professsor Paul Bessey (and associates) will be at Tucson Botanical Gardens to answer questions on plant pest, disease, and nutrient deficiencies on Wednesdays from 10 a.m. to noon, December through February. Free with admission to the Gardens, which is $7 adults; $3 children 4-12. For info, go to:

Favorite or New Plant

Rosemary Topiary
Mini rosemary topiaries appear in the nurseries during the holidays. Use them as festive centerpieces or tabletop decorations, or place one near the front door to release fragrance as you brush by the foliage. Don't overwater rosemary as it's native to the dry, rocky Mediterrean and is susceptible to root rot. If the pot comes with a decorative foil wrap, remove it when watering and allow water to run out the drainage holes. If indoors, rosemary needs very bright light or full sun to stay looking its best. Move outdoors after the holidays and plant in the garden after the last frost. It's difficult to keep them in topiary form over the summer because they like full sun yet the soil in small containers heats up considerably and can basically cook the roots. If you want to try, place it in morning sun and afternoon shade. Clip as needed to retain its form.


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