Tree Care

Tree maintenance at construction areaTree Maintenance in urban areaGrowth Environment


Tree maintenance at construction area

Construction site is not a good environment for tree. Environmental changes (such as soil compaction, mechanical damage, air pollution, etc.) due to different construction activities can cause rapid deterioration of tree. Any tree damage or tree failure due to construction activities can result in severe penalty (over $100,000 per tree may be charged or compensatory planting is required). To avoid getting any penalty, proper tree care should be taken.

Common mistakes

  • Placing chemical near tree

Proper tree care

  • Set up tree protection zone
  • Using robust fence to cordon off the tree protection zone
  • Detail briefing to workers for ensuring no tree will be affected by the construction works
  • Set up clear indicator board to show the area of tree protection zone
  • Monitoring tree health on a regular basis
  • Pruning if necessary
  • Applying mulching
For more details, please visit:
Tree care during constructions   Pictorial Guide for Tree Maintenance


Tree Maintenance in urban area

Urban environment is not the most ideal environment for trees. Without proper tree maintenance, tree failure can be resulted. Proper tree care included species selection, pruning, supporting, regular maintenance, etc. According to the government recommendation, tree assessment should be conducted by certified arborist annually. Our certified arborist is always ready to help.

Species Selection

Different tree species have different tree structure and ultimate tree size. “Right tree in right place” should be carefully considered before planting to maximize the long term greening effect. Advices from certified arborist is valuable and important to make a good decision in greening effect.

Purpose Requirement Suggested trees or shrubs
Planting under cover or footbridge Planting under cover or footbridge
  • Shade tolerance
  • Drought tolerance
  • Pollutant tolerance
  • Good vitality
Caryota maxima
Dypsis lutescens
Rhapis excelsa
Schefflera arboricola
Planting at open area for shading Planting at open area for shading
  • Large tree crown
  • Tree form
Ficus microcarpa
Ficus benjamina
Michelia x alba
Pterocarpus indicus
Cinnamomum camphora
Planting in limited area Planting in limited area
  • Upright tree form
  • Less invasive root system
  • Small tree form
Terminala mantaly
Sterculia lanceolata
Magnolia grandiflora
Cinnamomum burmannii
Elaeocarpus sp.
Pongamia pinnata
Planting for educational or ornamental purposes
  • With attractive flower or fruit
  • Seasonal change
  • Long flowering period
Attractive flower / fruit:
Cassia fistula
Sterculia lanceolata
Jacaranda mimosifolia
Koelreuteria bipinnata
Crateva unilocularis
Attractive leaves
Taxodium distichum
Sapium sebiferum
Liquidambar formosana


Growth Environment

Trees have different needs and requirements of environment when compared to landscaping plants. Proper tree care is needed to maintain tree health.

Landscaping vegetation Tree
Soil depth Soil depth Shallow Deep soil is needed. Tree need sufficient underground space for anchorage.
Irrigation Irrigation Frequent Over irrigation may cause suffocation. Less frequent but more thorough watering is suggested.
Fertilization Fertilization Needed Over fertilization may cause root burnt. Slow-release fertilizer should be used if necessary.
Mulching Mulching No Mulching with around 3.5 inches thick should be used to keep the soil humidity.
Planting space Planting space Can be densely planted Spacing of at least 3-4 m is needed.
Planting with other landscaping shrub or ground vegetation densely Planting with other landscaping shrub or ground vegetation densely Okay Should be avoided as the densely planted landscaping ground vegetation may hinder the work of tree assessment and may facilitate decay and disease. Competition for the nutrient will also be resulted.
Life span Life span Short and replacement is needed. Long and able to reduce the long term greening cost. Long life span
For more detail, please visit:
Keep Sufficient Space Clear of Vegetation at the Base of Trees   Provide Adequate Growing Space for Future Growth of Canopy