I'm stuck with some bougainvillea, a heritage from my mother, which are a nuisance, being watered weekly. Watering frequency will vary depending ... Read More about Arizona Landscape Watering Guidelines Citrus trees require large amounts of water, especially in the summer months. Best planted against a warm south or west facing wall or in a container that can be moved for protection in the winter. I find that they flower best in this region - their flowering patterns are variable. Like all plants, bougainvilleas start out relatively small, but will quickly take … 3. In Tucson, bougainvillea is subject to damage during our sub 32 degree nights. You can use a water-soluble fertilizer mixed at half strength every seven to 14 days, or apply a slow-release fertilizer in spring and midsummer. In winter, when they go dormant, watering them once a week is enough. Note: Keep bougainvillea on a slightly drier side for abundant blooms. Water the plant immediately if it looks wilted. This is meant to be a guide and you will need to make adjustments as needed depending on the plant. Use this landscape guide as a resource for your watering. A fairly new introduction to the long list of Bougainvillea varieties, ‘Torch Glow’ offers the same infamous drought and heat tolerance as other varieties without the need of a trellis for support. Bougainvillea is a heavy feeder and requires regular fertilization to produce blooms throughout the growing season. Questions I Often Get About Planting Bougainvillea. Bougainvillea may be used as an annual […] It does appreciate regular feeding, however, so fertilizers with lower amounts of nitrogen are often recommended for the best flower production (nitrogen is the first of the three numbers listed on the fertilizer’s label). ccarroll. It is always a good idea to water deeply when the topsoil goes dry, rather than shallow watering them frequently. Do I really not need to water bougainvillea? LANDSCAPE WATERING GUIDELINES How Much & How Often Water to the outer edge of plant’s canopy and to depth indicated. The "Torch Glow" cultivar of the popular shrubby vine bougainvillea shares a climbing nature and showy blossoms with its plant family cousins. Scientific: Bougainvillea hybrids (most are either B. glabra, B. spectabilis, B. brasiliensis, or more commonly hybrids) Common: bougainvillea Family: Nyctaginaceae Origin: Brazil Pronounciation: Boo-gan-VEE-ya HI-brids Hardiness zones: Sunset 5-6 as annual, 12, 13, 15-17, 19, 21 USDA 9 (will sustain foliage and stem freeze damage most winters), 10 - 11 . Caring for Torch Glow Bougainvillaea. However, they should not be watered every day. Bougainvilleas are pretty drought tolerant and don’t ask for frequent waterings. Having a bougainvillea in your garden, either in a pot or in the ground, is always joyful due to the gorgeous flush of color. Bougainvillea blooms on new growth. Multiple stems grow upright from the base of the plant, and leaves cling closely to the branches, giving this shrub an interesting, twisting appearance. Bougainvillea is not your typical houseplant—in its natural state, it's a sprawling climber and shrub with formidable thorns, often found on the exterior of buildings (like climbing up a trellis or over a fence) or in gardens in subtropical-to-tropical climates. 8 years ago. Arizona Gardening. Rating Content; Positive: On Aug 22, 2011, konarikcy from nicosia, Cyprus wrote: Hello I have been growing bougainvilleas in my mediterranean garden for many years. Feeding a bougainvillea too much nitrogen or giving it too much water will keep the plant in “growth mode” and prevent it from flowering. BOUGAINVILLEA In its native South America, bougainvillea is an evergreen, shrubby vine. Instead, water with large amounts of water infrequently: about once every five to seven days in the summer and once every 10 days in the fall and spring. 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