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Jacaranda Mimosifolia Jacaranda1 Edward F 4A Fact Sheet ST-317 November 1993 Jacaranda mimosifolia Jacaranda1 Edward F. Gilman and Dennis G. Watson2 INTRODUCTION Soft, delicate, fernlike, deciduous foliage and dense terminal clusters of lavender-blue, lightly fragrant, trumpet-shaped flowers make this large, spreading tree an outstanding specimen planting (Fig. 1). The striking blooms can appear any time from April through August (most often May), and are sometimes present before the fresh, new, light green leaves appear in spring. Flowering is reportedly best following a winter with several nights in the upper 30’s. Jacaranda may flower best when grown in poor soil. Jacarandas can reach 25 to 40 feet in height with an equal or greater spread, and the bent or arching trunks are covered with light grey bark. GENERAL INFORMATION Scientific name: Jacaranda mimosifolia Figure 1. Mature Jacaranda. Pronunciation: jack-uh-RAN-duh mih-moe-sih-FOLE-ee-uh DESCRIPTION Common name(s): Jacaranda Family: Bignoniaceae Height: 25 to 40 feet USDA hardiness zones: 9B through 11 (Fig. 2) Spread: 45 to 60 feet Origin: not native to North America Crown uniformity: irregular outline or silhouette Uses: large parking lot islands (> 200 square feet in Crown shape: spreading; vase shape size); wide tree lawns (>6 feet wide); shade tree; Crown density: open specimen; residential street tree; no proven urban Growth rate: fast tolerance Texture: fine Availability: generally available in many areas within its hardiness range 1. This document is adapted from Fact Sheet ST-317, a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: November 1993. 2. Edward F. Gilman, associate professor, Environmental Horticulture Department; Dennis G. Watson, associate professor, Agricultural Engineering Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville FL 32611. Jacaranda mimosifolia -- Jacaranda Page 2 Figure 2. Shaded area represents potential planting range. Foliage Fruit characteristics: does not attract wildlife; inconspicuous and not showy; fruit, twigs, or foliage Leaf arrangement: alternate (Fig. 3) cause significant litter; persistent on the tree Leaf type: bipinnately compound; odd pinnately compound Trunk and Branches Leaflet margin: entire Leaflet shape: obovate; rhomboid Trunk/bark/branches: bark is thin and easily Leaf type and persistence: deciduous damaged from mechanical impact; droop as the tree Leaflet blade length: less than 2 inches grows, and will require pruning for vehicular or Leaf color: green pedestrian clearance beneath the canopy; showy trunk; Fall color: no fall color change should be grown with a single leader; no thorns Fall characteristic: not showy Pruning requirement: requires pruning to develop strong structure Flower Breakage: susceptible to breakage either at the crotch due to poor collar formation, or the wood itself is Flower color: lavender; purple weak and tends to break Flower characteristics: pleasant fragrance; spring Current year twig color: brown; gray flowering; summer flowering; very showy Current year twig thickness: thick Fruit Culture Fruit shape: pod; round Light requirement: tree grows in full sun Fruit length: 1 to 3 inches Soil tolerances: clay; loam; sand; slightly alkaline; Fruit covering: dry or hard acidic; well-drained Fruit color: brown Drought tolerance: high Aerosol salt tolerance: none Jacaranda mimosifolia -- Jacaranda Page 3 Heaviest-flowering when grown in full sun, small trees of Jacaranda can tolerate light shade and will grow quickly. They thrive in sandy, well-drained soils but should be watered during dry periods. Prune branches so they remain less than half the diameter of the trunk to help keep the plant intact and increase durability. ‘Alba’ is a white-flowered cultivar which has a longer blooming period but sparser blooms. There are other cultivars available. Propagation is by softwood cuttings, grafting, or by seed. Seedlings often take a long time to bloom so grafted trees or those rooted from cuttings are preferred. Pests No pests are of major concern. Diseases Mushroom root rot is a problem on poorly-drained soil. Figure 3. Foliage of Jacaranda. Other Roots: surface roots can lift sidewalks or interfere with mowing Winter interest: no special winter interest Outstanding tree: not particularly outstanding Invasive potential: little, if any, potential at this time Pest resistance: long-term health usually not affected by pests USE AND MANAGEMENT The light, dappled shade makes Jacaranda well- suited for cooling patios, but it probably should not be used near pools due to the abundant leaf and flower drop. Jacaranda makes an ideal street tree, creating a spectacular sight when in full bloom. The arching branch habit is ideal for creating a canopy over a street or boulevard. Be sure to plant only those trees which have one central trunk and major limbs well-spaced apart for street tree and other high-use areas. Unpruned trees can become hazardous as they split apart at the crotches. Once properly trained and pruned, Jacaranda is fairly strong-wooded and less messy than Royal Poinciana. 4B MEETING MINUTES MILPITAS COMMUNITY ADVISORY COMMISSION Milpitas City Hall, Committee Meeting Room Wednesday, December 2, 2015 I. Call to Order Chair Batilo called the meeting to order at 7:00 pm & Roll Call Present: Chair Batilo, Vice Chair Mohsin, Commissioners Bilbao, Kathapurkar, Leon, Manassau, Rosario, Truong Alternate Commissioners Present: Bell, Chen, Lee Absent: Sharma, Gandhi II. Seating of Alternates – Bell III. Pledge of Allegiance – Chair Batilo led the Pledge of Allegiance IV. Approval of Agenda – Staff Liaison Tim Wong said New Business Item A, PG&E Presentation, will not be heard this evening. Vice Chair Mohsin motioned, and Chair Batilo seconded, for approval of the agenda as revised. Motion carried unanimously. V. Approval of Minutes – Minutes of November 4, 2015 – Commissioner Bilbao motioned, and Vice Chair Mohsin seconded, for approval of the meeting minutes. Motion carried unanimously. VI. Public Forum – Planning Commissioner Ray Maglalang presented the Commissioners with Jacaranda tree saplings. Mayor Esteves was present and thanked the Commissioners for their service to the City. VII. Announcements – None VIII. Liaison Report – Vice Mayor Montano said the City Council awarded a contract for construction of sports fields at the Milpitas Sports Center. IX. Commissioners Round Table – Vice Chair Mohsin thanked the Commissioners for their hard work through the year. Chair Batilo requested that Mr. Wong send the Commission the 2016 workplan and schedule a CDBG training. X. New Business A. PG&E Presentation Item deferred until the next meeting XI. Unfinished Business A. Our City Forest Tree Grant Mr. Wong said Our City Forest (OCF) met with Public Works staff and identified sites for tree plantings, as four of the five sites that OCF had previously proposed were in other jurisdictions. The City is required to maintain the trees for three years and had to find an area easily accessible for irrigation if it is not already in place. They found an area on Ranch Drive that fits the planting requirements well and are targeting December 19 for the planting of approximately 81 trees. OCF has 100 trees for the city and there is a development called Amalfi I that has a park where the remainder of the trees might be planted. B. Status of City Tree Council Recommendation Vice Chair Mohsin said last year the CAC recommended that staff take the CAC’s recommendation of the Jacaranda tree as the official City tree to the City Council for their approval. That has not happened and he is asking that this be taken to City Council for their consideration. Vice Chair Mohsin motioned, and Commissioner Bilbao seconded, for staff to take the CAC recommendation of the Jacaranda tree as the official City tree to City Council for their consideration. Motion carried unanimously. C. Town Hall Meeting Chair Batilo said the next Town Hall meeting is being held in May 2016 and the subcommittee would like assistance narrowing the theme of Education as that topic is too broad. Vice Chair Mohsin suggested that the subcommittee propose a plan and return to the full commission in January. Review Subcommittee Member Assignments and Update as Needed Make a Difference Day: Batilo, Mohsin, Sharma (A) National Night Out: Mohsin, Manassau, Truong, Bilbao (A) NBO Awards: Manassau, Rosario, Bilbao, Leon (A) Spring Cleanup Day: Sharma, Leon, Manassau, Batilo (A) Town Hall Meeting: Batilo, Leon, Kathapurkar, Sharma (A) Tree Planting: Kathapurkar, Bilbao, Rosario, Mohsin (A) XII. Adjournment – The meeting was adjourned at 8:23 pm to the next meeting of January 6, 2016. .
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