Removing Trunk Wrap from Newly Planted Trees: When and Why

Trees planted last fall have felt wrap on trunks. The gardener asks when to remove it and its purpose. Purpose of Trunk Wrap Shipping protection: Prevents bark damage during transport. Winter protection: Guards against

Pruning Overgrown Variegated Weigela and Arrowwood Viburnum

Marguerite in Chicago cut 50% of her overgrown variegated weigela (lots of dead wood) and wants to cut 4 feet off an arrowwood viburnum blocking a walkway. Shes a novice and fears damage. Weigela Assessment Removing dea

Holly Tree Decline: Yellow Leaves, Gray Mold, and Soil Solutions

Three large hollies (20–35 ft) have yellowing leaves, leaf drop, and grayish bark mold. The gardener seeks treatment. Diagnosis Yellow leaves + leaf drop: Classic signs of root stress—poor drainage, wrong pH, or root r

Hydrangea Flower Form Change: Mophead to Lacecap Explained

A gift hydrangea bloomed as a mophead (all sterile flowers) last year. This year its a lacecap (fertile center, sterile ring). The gardener asks how this happened. Explanation This is a natural variation in Hydrangea ma

Crab Apple Defoliation from Mold: Fungicide Spray — Prevents Repeat

Albany, NY: 17-yr crab apple defoliated last year after cool damp spring — mold on trunk again this spring. Solution Fungicide spray (per label) — controls mold/mildew. Natural cycle — wont kill tree unless repeated ann

Pruning Young Boxwoods for a Tall, Narrow Hedge

A gardener planted boxwoods 6–8 months ago and wants a tall, skinny hedge. Conflicting advice: crop low (5–6 inches) vs. risk of shock. Correct Approach Do not crop low. Thats for rejuvenating old plants, not training

Oleander Not Growing: Cultivar Size Limits and Clay Soil Solutions

Oleanders in clay soil havent grown much in years; tallest is 7 feet. Gardener asks if trimming stimulates growth and if cuttings root. Cultivar Matters Oleander cultivars vary greatly in mature height (4–20 ft). If you

Renovating Large, Old Boxwoods: Risks and Alternatives

A gardener has 15+ year old Korean and American boxwoods that are too large. She wants to hard-prune them to reduce size, accepting theyll look bad for a year. Hard Pruning Reality Boxwoods tolerate severe pruning bett

Pruning Weeping Cherry for Height: Understanding Its Growth Habit

A 4.5-foot weeping cherry is full and needs pruning. The owner wants it to grow taller. Key Fact Weeping cherries grow taller only from the central leader (trunk), not from the weeping branches. The branches naturally c

Why One Hydrangea Blooms Sparsely While Others Thrive

A large hydrangea has only two blooms in two years, despite Ironite applications. Other hydrangeas nearby bloom heavily. The gardener wants to increase flowering. Troubleshooting Checklist Light exposure: Compare sun h

Rhododendron Not Flowering: Shade, Pruning, and Fertilizer Fixes

A 2-year-old rhododendron in a shady spot (afternoon sun only) has grown leaves but no flowers. The gardener seeks reasons and solutions. Common Causes Insufficient light: Rhododendrons need dappled shade to part sun (

Pruning Overgrown Mugo Pine: Candle Pruning and Selective Reduction

A Mugo pine is encroaching on a sidewalk and a rhododendron. The gardener knows evergreen pruning is tricky and seeks advice. Best Technique: Candle Pruning Timing: Late spring when new growth (candles) elongates but n

Troubleshooting a Declining Magnolia 'Alexandria' in Georgia

A gardener in Georgia planted two Magnolia Alexandria in March. One is thriving; the other has droopy leaves that fall off at a touch. A pellet insecticide was applied around both; the other is fine. Miracle-Gro was appl

Fertilizing Newly Planted Hemlocks: Holly-tone Timing and Winter Burn Prevention

David in Albany, NY planted 6-foot hemlocks last fall. They show winter burn and uneven spring growth. He applied Holly-tone in early April; the installer recommends a second application in June. David wonders if thats e

Planting Shrubs in Toronto (Zone 5b): Hardiness, Hibiscus Care, and Winter Strategy

Trish in Toronto (zone 5b, -40°C winters) bought Boxwood Green Mountain, Braided Hibiscus, Peking Cotoneaster, and Weigela Bristol Ruby. She asks about winter survival, keeping hibiscus indoors, and reviving a struggling

Repairing a Split Branch on a Young Crepe Myrtle (Hopi)

Susan accidentally split a major basal branch on her 3-foot Hopi crepe myrtle while trying to redirect it. The vertical split is about 1 inch long on a 1-inch diameter branch. She asks if binding can fuse it. Emergency

Identifying a Two-Tone Weeping Japanese Maple

Shoshana saw a striking weeping Japanese maple with half green, half red foliage—appearing as two trees fused. She wants to identify and source it. Likely Explanation This is almost certainly a grafted chimera or a vari

Transplanting Established Viburnum and Hydrangea: Timing and Technique

Allison needs to move a leatherleaf viburnum and a hydrangea due to deck construction. Both are well-established. Key considerations: timing, root ball size, and light requirements. Best Transplant Times Viburnum: Earl

Diagnosing Sudden Browning in Mature Evergreen Shrubs

Gene has 20 established evergreen shrubs (15+ years old) across his yard. Over time, 7 have developed brown needles starting at the top and progressing downward. Two are completely brown. He noticed small brown moths fly

Growing Oleander (Nerium) in the Philippines and UK: Propagation and Care

Tony wants to grow oleander in the Philippines and asks about availability in the UK, alternative names, propagation, and cultural needs. Key Facts Botanical name: Nerium oleander (sole species in genus). Native range: