Loading...
11112 Firethorn Drive Podocarpus report Commercial Tree Care Community Developm#7intoArborist ent2025 Stone Ave, San Jose, CA 95125 Planning Division Letter CUPERTINO APPROVED Case# Site LoccTt022-002 1112 FifeMlwtff NS�F"geer�(s) Approva I Boayerbirector9/ Staff Approva I Dp __ 0,4L?Z122 Signature KPvWiMrghHarkousha ISA CertifieG'XM %TWE-5190A Commercial Tree Care December 30, 2021 Assignment My assignment was to perform a health and structural analysis of one Podocarpus gracilior (common name - Fern Pine) that is located on the left hand side of the HOA driveway entrance near the back corner of Unit # 11112 Firethorn Drive. I was also to provide a recommendation. Introduction The evaluation was done from the ground and the trees were not climbed. No tools or equipment were used to penetrate into the trees and no soil or tissue samples taken. No scans, such as tomography scans, were used during the evaluation. Evaluation Methods The tree was evaluated in August 2021. The evaluation procedure consisted of the following: 1. Evaluate the health of the foliar canopy 2. Evaluate the viable rooting space 3. Evaluate the balance of the foliar canopy 4. Provide recommendations Tree Description Common name: Fern Pine Botanical name: Podocarpus gracilior Circumference: 59" Height: 35' Canopy/Spread: 20' Health Status: "good" Replacements: 2-24-inch box Podocarpus macrophyllus Commercial Tree Care Community Developm#7intoArborist ent2025 Stone Ave, San Jose, CA 95125 Planning Division Letter CUPERTINO APPROVED Case# Summar2 The onLAPPW1 i tFbe is in relatively in good health and canopy is balanced. The tree trunk meas es 19 in s ❑❑BH or 59 inches circumference and is generally fully grown at 35 feet tall Approva I Bcj�y: irect r/c taft 0 e t iven the trees' limited growing space near the driveway entrance. It is located Approva I Dw 11 �4u,v ;u;-d NluI«.;;trip outside the perimeter wall of the HOA; approximately 1 Signature fnn$fjopn2ELi2��r wall fnundatinn- approx... 8 feet away from the building structure; 3 feet from the p6blT& W%alk. The tree has started to cause an infrastructure issue with the perimeter wall as depicted below, i.e. the concrete wall seam is visibly separating seen from outside the wall; presumably from the tree roots. There is a concern that the tree has also grown under the wall foundation and could potential undermine the wall in the future. This gracilior specie of Podocarpus is the largest of the three that is typically seem growing in the South bay The gracilior species has the potential to reach 60 feet tall &40 feet wide under the best growing conditions. This particular species of Podocarpus requires a large growing space for this tree to get to its normal size. A trees ability to grow in a healthy manner is largely dependent on the available rooting space. A healthy tree can grow roots twice the length of the width of the canopy. Due to the confined rooting space the roots are forced to grow under the concrete creating uplifted areas, infrastructure damage and liability hazards for the residents and public. Description of the Podocarpus gracilior The specie of Podocarpus is considered to be a rapid grower; which can grow up to 3 feet in one year. It is often planted by landscape architects not realizing its extensive root & crown growth potential. Even though a Podocarpus gracilior is very beautiful tree, it is not ideal for a limited growing space. Even in "average" soil conditions, a Podocarpus gracilior can quickly overwhelm a surrounding area clogging drains, damaging sidewalks, causing cracks in dwelling units and uplifting concrete. This tree has managed to do damage to the adjacent perimeter wall as evidence of the crack shown in picture below. This subject tree has reached a size that is detrimental to the wall. Prognosis and Recommendations: Given the growth habit of the podocarpus gracilior; the existing trees limited growing space and the existing infrastructure damage it is recommended to remove this tree and replace with the smaller specie of Podocarpus called macrophyllus —common name Yew Pine in keeping with the association's planting of the podocarpus gracilior specie on site. Respectfully submitted, Xsp' I.S.A. Certified Arborist#WE-5190A Commercial Tree Care Community Developm#7intoArborist ent2025 Stone Ave, San Jose, CA 95125 Planning Division Letter CUPERTINO APPROVED Case# urTg4;Z-4 r,tr.A,,t6ir Approval Body. Approva I Date £ ` a �� i Signature BAP it J. T � A jF Y w 1 � d r� Concrete wall damage from encroaching tree roots "tree A" 11112 Firethorn Drive Commercial Tree Care Community Developm#7intoArborist ent2025 Stone Ave, San Jose, CA 95125 Planning Division Letter CUPERTINO APPROVED Case# TR-2022-002 - T- Appkation Numhelfs # A Approval Body: Director/ Staff _ Approva I Date - 04/27/"-,- Signature Brianne Harkoush, Case Manager - i41Lil Vf VI MK[ .MPmaKJr + ' CA If I IQYEETEAO ROAD TREE REMOVAL SITE PLAN - 11112 Firethorn Drive Commercial Tree Care Community Developmtz�� ment2025 Stone Ave, San Jose, CA 95125 Planning Division Arborist Letter CuFLRTINO APPROVED Case # TR-2022-002 _ Application Nuniber(s) Approval Body: Director/ Staff JIB g � Approval Date 04/27/22 i�= o Signature Brianne Harkousha 2 -24 inch box J" Case Manager p .",. Podocar us _ L ,,, ,• macrophyllus W �r �y N,V�d,rEf hxi! ,r. r, s,+y�.r rMK u,i iw4.;.uu um I IUWE5TE.5G ROAD TREE REPLACEMENT LA ill 11112 Fir th rn Drive