Since 1974, whether you’re planting for structure, privacy, or color, the Lehigh Valley has been counting on our shrubs to thrive and deliver lasting results.
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Shrub FAQs
Is it too late to plant in the late spring or summer in the Lehigh Valley?
No! shrubs can be planted successfully throughout the summer. The key to success is consistent watering while the plant establishes its root system. Mulch, quality planting soil, and root-stimulating products can all help reduce stress from summer heat and support healthy root growth. If you have questions, stop by and speak with our knowledgeable staff! We’ll be happy to recommend the best products and care practices to help your new shrubs thrive.
How often should I water newly planted shrubs?
Newly planted shrubs need consistent moisture during their first growing season. In the Lehigh Valley, plan to water deeply 2–3 times per week for the first 4–6 weeks, then taper to once a week as the plant establishes. Always check soil moisture a few inches down before watering — our region’s clay-heavy soils can retain water longer than expected, and overwatering is just as harmful as drought stress.
Which shrubs grow best in Pennsylvania's climate?
Many shrubs thrive in Pennsylvania’s USDA Hardiness Zone 6b (which covers the Emmaus area). Reliable choices include Knock Out Roses, Endless Summer Hydrangeas, Mountain Laurel (Pennsylvania’s state flower!), Inkberry Holly, Viburnum, Forsythia, and Spirea. Stop in and ask our team — we stock varieties proven to perform in our local soil and weather conditions.
Do I need to fertilize my shrubs, and if so, when?
Most shrubs benefit from fertilization once or twice a year. In our area, apply a balanced, slow-release fertilizer in early spring as new growth emerges, and optionally again in early summer. Avoid fertilizing after mid-summer, as this can encourage tender new growth that won’t harden off in time for our Lehigh Valley winters. A soil test is always a great starting point to know exactly what your shrubs need.
How do I protect my shrubs over the winter in Pennsylvania?
Most established, zone-appropriate shrubs handle our winters just fine. For added protection — especially on broadleaf evergreens like Rhododendrons and Holly — apply a 2–3 inch layer of mulch around the base in late fall to insulate roots. Burlap wrapping can shield shrubs from harsh winter winds and road salt spray, which is especially important for plants near driveways or sidewalks. Avoid heavy pruning in the fall, as this can reduce cold hardiness.
When and how should I prune my shrubs?
Timing depends on whether your shrub blooms on old wood or new wood. Spring-blooming shrubs like Forsythia and Lilac should be pruned right after they finish flowering. Summer-blooming shrubs like Butterfly Bush and Panicle Hydrangeas can be cut back in late winter or early spring. As a general rule, avoid major pruning in the fall in our climate, as it can make shrubs more vulnerable to winter damage. When in doubt, our staff is happy to help you identify your shrub and recommend the right approach.
How much sun or shade do shrubs need?
It depends on the variety! Many popular shrubs like Spirea, Knockout Roses, and Panicle Hydrangeas prefer full sun (6+ hours per day). Others, like Mountain Laurel, Oakleaf Hydrangea, and certain Holly varieties, do beautifully in partial to full shade — great for the shadier spots common in many Lehigh Valley yards. When browsing our shrub selection, check the plant tag or ask a team member to help match the right shrub to your specific planting location.