“Why doesn’t my bougainvillea bloom?” It’s a common question that growers everywhere ask about the gorgeous plants they brought home from the nursery, when they find the blooms stop coming shortly after the plant landed in its new spot in the garden. No, a bougainvillea will typically bloom from April to December, with the heaviest bloom-time in spring and autumn. To ensure that bougainvillea blooms abundantly, strategically put it at a location where it is exposed to the direct… Start with the smallest pot as bougainvillea plant do well if its roots are pot-bound. Open the doors and windows when temperatures permit to give your house a change of air. Over Pruning. Not enough sun = not enough color. Fertilize bougainvillea plants that look unhealthy. More than that and you’ll encourage root rot and discourage blooms. A bougainvillea blooms best when pot-bound so do not be tempted to re-pot unless you must. Without direct sun or with too much shade, you'll just see green. That lightly shaded spot may need color, but without direct sunlight -- at least five hours each day -- your bougainvillea will not bloom. Bougainvillea flower drop can be caused by temperatures that … Shouldn’t it? Bougainvillea has flowers that resemble colored tissue paper, hence the nickname Paper Flower. © Copyright 2020 Hearst Communications, Inc. For regular maintenance, water only when the soil is dry but before leaves show signs of stress. When pruning bougainvillea, wear heavy gloves and long sleeves to protect against treacherous thorns. Pruning in summer eliminates blooms. Pick your site carefully upfront, so the plant won't need to be disturbed. 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These plants are content with any good soil mix, as long as drainage is provided. Bougainvilleas climbing plants come in a vast variety of colors, including purple, pink, orange, and red. If you bring your potted Bougainvillea indoors, it might cease blooming if it does not obtain full sun. Monrovia: Why Won't My Bougainvillea Bloom? But that toughness belies the tenderness of young, newly transplanted roots. Overfeeding. Hansen's work appears regularly in consumer and trade publications, as well as numerous internet gardening and lifestyle channels. If your vine is exposed to night lighting, that could also limit blooms. This will benefit you and your houseplants. Los Angeles Times: Bougainvilleas: Summer Is Their Time of Year, Missouri Botanical Garden: Bougainvillea (Group). Too much fertilizer spells vigorous growth, plentiful leaves and few blooms. Prune the bougainvillea. Too often though, the vine you bring home from the nursery, drenched in brilliant color, balks at flowering in its new garden home. Any well drained potting soil mix is suitable for growing Bougainvillea. If you want blooms and your plant looks healthy, focus your efforts on supplementing phosphate and potassium, adding nitrogen only when your plant’s leaves start to look slightly less green than usual. Bougainvillea growers often withhold water for extended periods to force the plant into bloom. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. She is passionate about reshaping the way people experience gardens and gardening. You may not get long-lasting blossoms if you fail to meet them. A bougainvillea blooms best when pot-bound so do not be tempted to re-pot unless you must. F. If you do not have a greenhouse, move the bougainvillea into the house or insulated garage. It is best to leave the plant in its original container until the roots have replaced all of the soil and you can’t keep the plant well watered. For example, it is not unusual to grow a bougainvillea in a 1 gallon pot … If you live where in a climate where bougainvillea is borderline zone hardy (see zones below), then planting it against a warm wall or in a corner against the house will help. Again, being wild plants, pruning isn’t really in their plans, so if you’re trimming just to keep your plant small, you might as well replace it with a dwarf variety. We have had ferns, succulents and flowering arrangements, but they do not … Use a soluble 20-20-20 fertilizer, mixed into the plant's water, every other week. Super floriferous tropical vine produces multicolor blooms, perfect for adding color to sunny spaces. Improper pruning can be the cause of limited bougainvillea blooms. Bougainvilleas bloom best under arid conditions. Being the hardy plants they are, bougainvillea don’t need much water. The Size of the Container For Bougainvillea. This can vary depending on where you live. Vines, leaves and flowers should all be glossy. Like cactus, your bougainvillea is actually native to very arid conditions so water it only when the top two inches (5 cm.) Sign up for our newsletter. As beautiful as they are the in garden or landscape, getting blooms on bougainvillea can be a difficult task because of the way most gardeners think about their plants. Heavy pruning of bougainvillea will seriously reduce the amount of blooms your bougainvillea produces, so if you must trim, do so carefully. Bougainvilleas require warm weather. We gardeners dread having to face the rigors of bringing in our tropical patio plants. Bougainvillea plants are prolific growers and need good pruning to force blooming and retain a pretty shape. Prune long trailing stems back 20-30 inches to encourage more color - the … Over-watering creates too much moisture around its roots which causes leaf drop and root rot resulting in a dying bougainvillea. Pruning shears handle the job well. What has gone wrong? This vine is well-adapted to arid climates where there are defined wet and dry seasons. Mature, established vines rarely require watering. Plants, after all, need careful, dedicated care, so no flowers on bougainvillea must mean that they’re not getting enough food, water or light. Give the plant some fertilizer with bloom booster each time you do this "haircut" to encourage the next set of blossoms. This will promote healthy growth in the spring. Sterilize the blades with household disinfectant before and after each cut to prevent the spread of disease. Like every other plant, bougainvillea has particular growing needs that must be met if it is to bloom and grow happily. June 2, 2018. by wilma. The tropical blooming machine will be colorful all winter if you keep the greenhouse temperatures between 50 degrees F. And 110 degrees. The problem with bougainvillea is that they’re tough plants, hardy to the point of almost being weeds. There are more than 300 cultivars with different colors of bracts, most of which are complex hybrids between different species. The blooming cycles last four to six weeks; prune and pinch after the blooming cycle. Wear gloves when pruning bougainvillea. I encourage flowering with tip pruning. How Long Does It Take Before a Wisteria Plant Blooms for the First Time? Bougainvillea is a sun-lover and grows best in full sun.The plant will thrive in a location that receives at least 6-hours of direct sunlight each day. When you find your bougainvillea has lots of gorgeous green growth and no blooms, it’s probably because of an excessive amount of nitrogen fertilizer. Potted Bougainvillea – Good Soil and Drainage. There are over 250 varieties of this plant, with some known to be very large climbers while others are dwarfs that only grow to a meter in height. Some growers choose to plant their bougainvilleas in pots buried in the ground, which works to marry the concept of root binding with landscape integration. A bougainvillea not blooming is a problem that’s easy to overcome, provided you think differently about your plants. If your bougainvillea has bloomed in the past but suddenly stopped blooming, check for tree branches that may have grown over them and are now blocking the sun from shining on the plants. Trim each branch about 6 or 8 inches from the tip. Bougainvillea demands plenty of sun. I am looking for recommendations for a hanging potted plant to place on our front porch eve. Sign up to get all the latest gardening tips! It is best to leave the plant in its original container until the roots replace all soil and you can’t keep the plant well watered. of the soil feel dry to the touch. Return potted bougainvillea to a full-sun location in spring and resume monthly fertilizing. The vine goes through regular cycles of bloom and rest, which depend on being in sync with nature's schedule. So never be in hurry to re-pot. That lightly shaded spot may need color, but without direct sunlight -- at least five hours each day -- your bougainvillea will not bloom. You can trim to Bougainvillea shape or thin it as you want. They flourish with calculated neglect. After the bougainvillea has finished blooming for the season, cut it back by a few inches. Selected physiological and biochemical parameters were monitored at the vegetative and reproductive growth stages in potted Bougainvillea plants treated with five different concentrations of TRIA. Bougainvillea's spectacular blossoms, consisting of colorful bracts and tiny white flowers, form on new wood. Do not allow them sit in puddles of water and make sure the drainage holes do not become plugged. With major pruning complete, limit yourself to minor nips or willingly sacrifice blooms. If your bougainvillea, hardy in U.S. Department of Agriculture plant hardiness zones 9 through 11, isn't blooming, some simple adjustments may be in order. Regular bougainvillea care involves trimming after each bloom cycle and then fertilizing to promote new growth and new flowers. These plants thrive in the tropics in areas of low rainfall and intense sun and heat. If you wait until the buds have formed, you'll cut off the new growth and limit flower production. You can use rubbing alcohol and always prune the Bougainvillea plant after it has finished blooming. Bougainvillea needs at least 6 hours of full sun a day to flower profusely and look its best. When you find your bougainvillea has lots of gorgeous green growth and no blooms, it’s probably because of an excessive amount of nitrogen fertilizer. Bougainvillea. Remember, the root system needs time to grow into each new pot, 2-3 years. If limited blooms beset you, check your watering -- especially if the plant receives automatic irrigation. The reasons for a bougainvillea not blooming are the following: Wrong soil Not enough Light Over-watering Overfeeding Re-potting Heavy Pruning or no pruning Learn how to how to keep bougainvillea blooming or how to force your potted bougainvilleas to bloom by taking proper care of light, watering, fertilizing, pruning and re-po… For example, when we lived in central Florida, our heaviest bloom-time was early-to-mid spring and late autumn, both of which is when the weather is cooler. Sunset Plant Finder: Bougainvillea Hybrid, Orange County Register: Temperamental Bougainvillea Is a Tangle of Contradictions, University of Florida Nassau County Extension: Bougainvillea. Cut off vigorous shoots as they will stunt the growth of other parts of the plant, and pinch. If your vine is new to its home, it may need time to recover before it will bloom. Bougainvillea . To promote maximum color, give bougainvillea the sunniest spot in the garden, protected from wind, cold and frost pockets. You can also prune it back less or aggressively or cut back to the to the bottom of the container. Bougainvillea Won't Bloom 1. Plant in full sun. Once established, bougainvillea seems impervious to disturbance. Hi Kathy – Common causes for a bougainvillea not to bloom are: not enough sun, not enough heat, too much water, or too much fertilizer. This is why landscape bougainvilleas often don’t bloom as rigorously or as frequently as those planted in pots. Advanced flowering, flower bud number, and blooming rate increased significantly with 0.5 and 1.0 mg/L TRIA treatments. Why your bougainvillea not blooming? Winter Care for Potted Bougainvilleas. They need to be neglected to within an inch of their lives. If you bring your potted bougainvillea indoors, it might cease blooming if it does not get full sun. Always clean a pair of clippers with a disinfectant before using them. After one glimpse of a building blanketed in bougainvillea (Bougainvillea spp.) Hybrid bougainvillea flowering shrub is ideal as an effective privacy hedge or draped along trellises and pergolas. is a spiny climbing subtropical shrub that can bloom on and on for months, even all year long under very good conditions. Flowering shrubs plants are native to the tropical region and can face a hot and humid climate. Bougainvillea thrives in lean, low-nutrient soils. Bougainvillea's sensitive roots injure easily when transplanted. The vine also prefers slightly acid soil. A dying bougainvillea is often due to over watering, slow draining soils and cold temperatures. 3. Bougainvillea will not bloom in shade. I’ve never grown one indoors but know you need high light, low water. Repotting. Bougainvillea demands plenty of sun. Bougainvillea flowers heaviest when the plant is water-stressed. Again, your bougainvillea thrives on neglect, including being allowed to become root bound. Vigorous pruning promotes increased flowering, but limit extensive pruning to spring. If your bougainvillea is not blooming, it probably is not receiving enough sun or fertilizer. with its vibrant, flamboyant blooms, you may yearn for that same look -- even on a smaller scale. Although you can prune bougainvillea throughout the year, pruning in summer may cut off the forming buds, reducing the amount of color you see the next blooming cycle. Prune in early spring. Fall or winter pruning stimulates vulnerable new growth susceptible to cold. The more sun your plant gets, the more blooms you'll get. Too much water translates to few or no blooms. An older bougainvillea in the ground for five to seven years will bloom on and off all summer and more as the years go by. … Answer: The bougainvillea (Bougainvillea spp.) Like other plants, too much nitrogen encourages bougainvillea to add lots of vegetative parts like leaves and stems at the expense of buds. The more sun the vine receives, the more blooms you'll enjoy. Water your plant about once a week, but let it dry out between waterings. Blooming occurs year round in most tropical climates, but in more seasonal locations (like in Southern California) blooming is most prolific in spring and fall. Then water thoroughly. You can trim to your bougainvillea shape or thin it as you want. This plant also loves the heat. Like other plants, too much nitrogen encourages bougainvillea to add lots of vegetative parts like leaves and stems at the expense of buds. Incorporate some organic matter such as peat moss in the soil at planting, and that should be sufficient for the vine's needs. Re-invigorate your houseplants by removing the top 1/4 inch of soil and top-dressing with fresh potting soil. To stimulate blooming this way, withhold all water until the leaves begin to wilt. Temperatures consistently colder then 40°F (5°C) result in dying bougainvillea. Feed the plant … Lugging the giant containers around is difficult, and worse – it is so sad to de-frock the outdoor living area of blooming foliage. Always prune the bougainvillea plant after it has finished blooming. If they grow dull or begin to lose their color, it's a sign of missing nutrition. Re-pot into larger pot sizes gradually, from a plant in a 6 inch pot into a 9 inch pot and so on. Bougainvillea can technically be pruned at any time of the year, but the best time to do so for the integrity of the plant is in very early spring, before the plant has begun to produce buds for new flowers. That being said, they need to be cared for like weeds if you’re to find success with them. ... literally an acre of potted Bougainvillea in a botanical gardens in Thailand (Nong Nooch) ... growing best when the root are really crammed into a pot. 2. There are several errors that growers tend to make that interfere with bougainvillea flower formation, including: Overwatering. It’s recommended that you only trim right after a bloom if you trim at all. Jolene Hansen is a lifelong gardening enthusiast and former horticulture professional. Thrives in hot, sunny areas that receive at least 6 hours of direct sunlight per day DeGroot's NurseriesHouseplant Care. Don't water. Some bougainvilleas needs long nights and short days to induce flowering. 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