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1a Selection And Planting

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sherylwil

The document discusses various topics related to selecting and planting trees, including: - Types of nursery stock like bare root, balled and burlapped (B&B), containerized, and fabric bag grown - Minimum root ball size requirements according to tree caliper size - Factors to consider for proper tree selection like exposure, soil, water and maintenance needs - Inspection of nursery stock to avoid issues like included bark, pests or diseases, and potbound or girdling roots

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Colorado Master Gardener Training Tree Selection and Planting
Pre-plant handling Planting techniques Success Plant selection Post-planting care
Tree Selection What’s your favorite tree?
Trees/shrubs with multiple seasons of interest
“ Right Plant, Right Place” article: e-mail request to [email_address]
Right Plant, Right Place Soil Tilth pH & Iron Chlorosis Fertility Soil salts
Right Plant, Right Place Root space Minimum rooting area Air space
Right Plant, Right Place Water needs Irrigation needs for growth Irrigation needs for survival
Right Plant, Right Place Maintenance levels Pest management Pruning needs Fireblight
Right Plant, Right Place Exposure: sun, wind, heat, & cold
Right Plant, Right Place Vandalism Potential root damage to hardscapes Utilities (above ground and below ground) Turf competition & herbicides Pesticide drift De-icing salt
How is nursery stock sold? bare-root - least expensive, most risky containerized - plastic, fiber “ Grow-bag” - woven fabric balled-in-burlap “B in B” or “B and B” potted B in B placed in a large pot spade-dug collected or nursery-grown
Types of Stock Bare Root Bare root Nursery grown Harvested and shipped without soil Processed A bare root plant packed with a growing media (like sawdust) around the root system
Types of Stock Bare Root Bare root Processed Small caliper stock only. For best success, plant late winter to early spring, allowing time for fine roots to develop before leafing. Success rates falls quickly once plant leafs out.
Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Dug from field with root ball and soil intact. Wrapped in burlap, fabric, twine, wire, etc. and/or placed in pot to hold soil ball together.
Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Roots cut in the harvesting process the plant retains only 5-15% of its root system.
Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Soil ball can be heavy, and expensive to move Less stress with spring and fall plantings
Size (weight) limitations on moving large trees Rootball Diameter Moving 2 feet 2 people 3 feet front end loader 4 feet mechanical tree mover Root ball tapers to the bottom.
Rules and Regulations Colorado Nursery Act Minimum root ball size for a corresponding plant size is set by state statute under the Rules and Regulations of the Colorado Nursery Act.
Minimum ball diameter for shade trees B&B, Nursery Grown Minimum Tree Caliper Ball Diameter 3 1 / 2 to 4 36 inch 4 to 41/2 inch 42 inch 4 1 / 2 to 5 inch 48 inch 5 to 5 1 / 2 inch 54 inch 5 1 / 2 to 6 inch 57 inch 6 to 7 inch 60 inch 7 to 8 inch 70 inch 8 to 9 inch 80 inch Minimum Tree Caliper Ball Diameter 1 / 2 to 3 / 4 12 inch 3 / 4 to 1 inch 14 inch 1 to 1 1 / 4 inch 16 inch 1 1 / 4 to 1 1 / 2 inch 18 inch 1 1 / 2 to 1 3 / 4 inch 20 inch 1 3 / 4 to 2 inch 24 inch 2 to 2 1 / 2 inch 26 inch 2 1 / 2 to 3 inch 28 inch 3 to 3 1 / 2 inch 32 inch (CO Dept Agric)
Maximum size for tree spade deciduous evergreen Spade tree tree size caliper height 44” <4” 5-7’ 66” <6” 7-9’ 78” <7” 9-14’ 85” <8” 14-18’ Complicated by Root severance tolerant species Root severance sensitive species
Treespade
% roots retained in rootball
root re-establishment takes ~ 1 season per inch of tree caliper. In hardiness zone 4-5, roots grow an average of 18 inches per year. Larger trees take longer for the root system to re-establish.
Types of Stock Container grown Grown in a pot in a managed nursery setting .
Types of Stock Container grown Grown in a pot in a managed nursery setting . Restricted rooting system Typically grown in light soilless potting mixes More prone to drought following planting May be planted any season
Types of Stock In-ground fabric bag grown (“grow bags”) Field grown in a fabric bag to limit root spread
Types of Stock In-ground fabric bag grown (grow bags) Field grown in a fabric bag to limit root spread Restricted rooting system Typically grown in light soils More prone to drought following planting
Types of Stock In-ground fabric bag grown (grow bags) Field grown in a fabric bag to limit root spread. In planting: Bag MUST be removed Prune off roots extending beyond root ball
Types of Stock Growing Systems Nursery grown -- field grown in a managed nursery setting Plantation grown -- field grown with limited inputs Collected -- from native stand
Selection / Inspection Don’t buy problems!
Selection / Inspection Don’t buy problems! Adequate twig growth past 2-4 years. Good leaf color Pruning wounds Closed or small
Selection / Inspection Don’t buy problems! Branching structure? Corrective pruning? Included bark? Don’t accept any tree with co-dominant branching.
Selection / Inspection Don’t buy problems! Insect, disease, and mechanical injury?
Selection / Inspection Don’t buy problems! Containerized - root ball potbound? B & B - Trunk flare visible? Minimum root ball size determined by tree caliper
Selection / Inspection Don’t buy problems! Root system Girdling roots? Live? Whitish = healthy Blackish = dead

More Related Content

1a Selection And Planting

  • 1. Colorado Master Gardener Training Tree Selection and Planting
  • 2. Pre-plant handling Planting techniques Success Plant selection Post-planting care
  • 3. Tree Selection What’s your favorite tree?
  • 4. Trees/shrubs with multiple seasons of interest
  • 5. “ Right Plant, Right Place” article: e-mail request to [email_address]
  • 6. Right Plant, Right Place Soil Tilth pH & Iron Chlorosis Fertility Soil salts
  • 7. Right Plant, Right Place Root space Minimum rooting area Air space
  • 8. Right Plant, Right Place Water needs Irrigation needs for growth Irrigation needs for survival
  • 9. Right Plant, Right Place Maintenance levels Pest management Pruning needs Fireblight
  • 10. Right Plant, Right Place Exposure: sun, wind, heat, & cold
  • 11. Right Plant, Right Place Vandalism Potential root damage to hardscapes Utilities (above ground and below ground) Turf competition & herbicides Pesticide drift De-icing salt
  • 12. How is nursery stock sold? bare-root - least expensive, most risky containerized - plastic, fiber “ Grow-bag” - woven fabric balled-in-burlap “B in B” or “B and B” potted B in B placed in a large pot spade-dug collected or nursery-grown
  • 13. Types of Stock Bare Root Bare root Nursery grown Harvested and shipped without soil Processed A bare root plant packed with a growing media (like sawdust) around the root system
  • 14. Types of Stock Bare Root Bare root Processed Small caliper stock only. For best success, plant late winter to early spring, allowing time for fine roots to develop before leafing. Success rates falls quickly once plant leafs out.
  • 15. Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Dug from field with root ball and soil intact. Wrapped in burlap, fabric, twine, wire, etc. and/or placed in pot to hold soil ball together.
  • 16. Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Roots cut in the harvesting process the plant retains only 5-15% of its root system.
  • 17. Types of Stock Field Grown B&B, (balled and burlapped) Balled and potted Soil ball can be heavy, and expensive to move Less stress with spring and fall plantings
  • 18. Size (weight) limitations on moving large trees Rootball Diameter Moving 2 feet 2 people 3 feet front end loader 4 feet mechanical tree mover Root ball tapers to the bottom.
  • 19. Rules and Regulations Colorado Nursery Act Minimum root ball size for a corresponding plant size is set by state statute under the Rules and Regulations of the Colorado Nursery Act.
  • 20. Minimum ball diameter for shade trees B&B, Nursery Grown Minimum Tree Caliper Ball Diameter 3 1 / 2 to 4 36 inch 4 to 41/2 inch 42 inch 4 1 / 2 to 5 inch 48 inch 5 to 5 1 / 2 inch 54 inch 5 1 / 2 to 6 inch 57 inch 6 to 7 inch 60 inch 7 to 8 inch 70 inch 8 to 9 inch 80 inch Minimum Tree Caliper Ball Diameter 1 / 2 to 3 / 4 12 inch 3 / 4 to 1 inch 14 inch 1 to 1 1 / 4 inch 16 inch 1 1 / 4 to 1 1 / 2 inch 18 inch 1 1 / 2 to 1 3 / 4 inch 20 inch 1 3 / 4 to 2 inch 24 inch 2 to 2 1 / 2 inch 26 inch 2 1 / 2 to 3 inch 28 inch 3 to 3 1 / 2 inch 32 inch (CO Dept Agric)
  • 21. Maximum size for tree spade deciduous evergreen Spade tree tree size caliper height 44” <4” 5-7’ 66” <6” 7-9’ 78” <7” 9-14’ 85” <8” 14-18’ Complicated by Root severance tolerant species Root severance sensitive species
  • 23. % roots retained in rootball
  • 24. root re-establishment takes ~ 1 season per inch of tree caliper. In hardiness zone 4-5, roots grow an average of 18 inches per year. Larger trees take longer for the root system to re-establish.
  • 25. Types of Stock Container grown Grown in a pot in a managed nursery setting .
  • 26. Types of Stock Container grown Grown in a pot in a managed nursery setting . Restricted rooting system Typically grown in light soilless potting mixes More prone to drought following planting May be planted any season
  • 27. Types of Stock In-ground fabric bag grown (“grow bags”) Field grown in a fabric bag to limit root spread
  • 28. Types of Stock In-ground fabric bag grown (grow bags) Field grown in a fabric bag to limit root spread Restricted rooting system Typically grown in light soils More prone to drought following planting
  • 29. Types of Stock In-ground fabric bag grown (grow bags) Field grown in a fabric bag to limit root spread. In planting: Bag MUST be removed Prune off roots extending beyond root ball
  • 30. Types of Stock Growing Systems Nursery grown -- field grown in a managed nursery setting Plantation grown -- field grown with limited inputs Collected -- from native stand
  • 31. Selection / Inspection Don’t buy problems!
  • 32. Selection / Inspection Don’t buy problems! Adequate twig growth past 2-4 years. Good leaf color Pruning wounds Closed or small
  • 33. Selection / Inspection Don’t buy problems! Branching structure? Corrective pruning? Included bark? Don’t accept any tree with co-dominant branching.
  • 34. Selection / Inspection Don’t buy problems! Insect, disease, and mechanical injury?
  • 35. Selection / Inspection Don’t buy problems! Containerized - root ball potbound? B & B - Trunk flare visible? Minimum root ball size determined by tree caliper
  • 36. Selection / Inspection Don’t buy problems! Root system Girdling roots? Live? Whitish = healthy Blackish = dead