Intro to Pruning. Tyler Hill Clearfield City Arborist, ISA Certified UT-4431A Bachelor's of Science in Ornamental Horticulture, USU

Transcription

1 ntro to Pruning yler Hill learfield ity rborist, S ertified U-4431 Bachelor's of Science in Ornamental Horticulture, USU 1

2 dding beauty to our homes with great looking trees. 2

3 What to use Hand Pruners ½ -1 branches Saw 2 + large branches oppers 1 ½ branches 3

4 easons for pruning ead wood (anytime) Watersprouts and Suckers(anytime) ross/ubbing branching (anytime) Broken (anytime) ncluded bark ense crown Utility clearance Vehicle/pedestrian clearance raining young trees Structural ruit production isease (anytime) 4

5 When to Prune Proper pruning may be done any time of the year Not recommended during bud swell or leaf abscission ommon time is in late winter or early spring when trees are dormant ruit trees usually after flowering Shrubs that bloom before June 1 st (prune after bloom, orsythia,ilac) erminology Branch collar Branch bark ridge Branch protection zone ompartmentalization O Node, nternodes aterals 5

6 Branch ollar & Branch bark ridge 6

7 Branch protection zone 7 lush cuts allow decay to enter tree through truck tissue

8 .O... ompartmentalization Of ecay n rees 8

9 Pruning uts educes chance at tearing bark on remaining trunk inal cut should produce a complete doughnut of callus 9

10 10

11 Nodes and nternodes Nodes- Points where bubs, leaves or twigs attach to stems nternodes- Stem portions between nodes 11

12 Prune at node or to a lateral branch 12

13 Structural pruning of young trees rain young trees for form stablish a central leader Subordinate competing laterals liminate co-dominant stems ncluded bark hin to permanent scaffold braches 13

14 Pruning echniques rown cleaning/hinning Water sprouts (Basal and adventitious sprouts) Vista pruning ion tailing rown raising rown reduction opping rown restoration Utility pruning 14

15 15 Basal spouts cleaned up and thinning, a thinned tree should not look pruned

16 ncluded bark 16

17 reating a lion tail we lose taper of the tree 17

18 rown eduction & opping 18

19 opping Stimulates adventitious sprouts Weak branch attachments ecay spreads easily to the roots esults in poor tree form, making it hazardous Premature death 19

20 o p p i n g 20

21 Utility pruning 21

22 Pruning on'ts opping ion tailing eaving Stubs Painting wounds 22

23 enewal Pruning arge Shrubs ncreases new growth emove 1/3 of the oldest canes (to the ground) educe the length of branches (no sheering) 23

24 Spring-lowering arly-spring bloomers, such as lilac, forsythia, and rhododendron, flower on wood formed the previous year. he best time to prune them is late spring -- immediately after they finish blooming. Pruning later in the growing season or during winter, you'll remove flower buds and decrease the amount of spring bloom o keep spring bloomers flowering vigorously, remove some of the oldest shoots all the way to the ground. his allows younger stems to grow and bloom. 24

25 Summer-Blooming Plants that bloom in summer, such as potentilla, butterfly bush, some spirea, etc, produce their flowers on new growth from the current season. Prune them in winter while they're dormant, or in early spring just before they push out their new growth. ou can even cut them all the way to the ground in late winter, and they'll still bloom that same summer. Shrubs without showy Bloom ut back shrubs grown primarily for their foliage, such as barberry, burning bush, dogwood, etc., almost anytime except in late autumn. New growth that starts after late season pruning won't harden off properly before winter. f you want to do major pruning, it's best to cut the shrub back when it is dormant in winter. 25

26 Pruning vergreens Plant the right one! ead/iseased/broken hree types of evergreens: Whorl-branched Pine, Spruce, ir andom-branched Juniper, arborvitae, yew olerate sheering Broad-leaf Boxwood, euonyymus olerate sheering 26

27 Pruning oses enews growth Pruning promotes blooms Prune ¼ above an outside-facing bub iming depends on the type of rose 27

28 Hybrid s, loribunda, Grandiflora & Miniatures Produce blooms on current seasons growth Need annual pruning Mid-pril when buds swell eave 3-5 canes, ead-heading emoving spent flowers, cut the 1 st 5 leaflet 28

29 Questions? 29