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‘Penny Mac’ Hydrangea Plant Facts

August 11, 2023

Hydrangea arborescens ‘Penny Mac’ – The Pinnacle of Elegance

Hydrangea arborescens ‘Penny Mac,’ a beloved cultivar of the smooth hydrangea, boasts a timeless beauty that graces gardens with its abundant, show-stopping blooms. With its lush foliage and picturesque blossoms, ‘Penny Mac’ stands as a testament to nature’s artistry. This cultivar has captured the hearts of garden enthusiasts and casual admirers alike, earning its place as a cherished addition to landscapes of all kinds.

Description: ‘Penny Mac’ hydrangea features large, rounded flower clusters known as corymbs. These blossoms consist of numerous individual florets that collectively form a globe-like shape. The flower heads emerge in a delicate shade of pale green, transforming into an exquisite blend of soft pink and lavender as they mature, offering a captivating display of color transitions throughout the growing season. The lush, dark green foliage serves as a perfect backdrop, enhancing the overall visual appeal of this remarkable shrub.

Planting Zones: ‘Penny Mac’ hydrangea is well-suited for planting in USDA hardiness zones 3 to 9. Its adaptability to a wide range of climates makes it a versatile choice for gardeners across different regions.

Growing Guide – Planting from a 4″ Pot:

  1. Selecting a Location: Choose a planting site that receives partial to full sunlight. Morning sunlight with some afternoon shade is ideal for ensuring healthy growth and prolific blooming.
  2. Soil Preparation: ‘Penny Mac’ hydrangeas thrive in well-draining, fertile soil. Prior to planting, amend the soil with organic matter, such as compost or well-rotted manure, to improve its texture and nutrient content.
  3. Digging the Hole: Dig a hole that is slightly larger than the root ball of the 4″ pot. Make sure the hole is deep enough to accommodate the plant’s root system comfortably.
  4. Planting: Gently remove the hydrangea from the 4″ pot, being careful not to disturb the roots. Place the plant in the center of the hole and backfill with soil, ensuring the top of the root ball is level with the surrounding soil surface.
  5. Watering: Thoroughly water the newly planted hydrangea to settle the soil and eliminate air pockets around the roots. Maintain consistent moisture during the establishment period.
  6. Mulching: Apply a layer of organic mulch, such as wood chips or straw, around the base of the plant. Mulch helps retain soil moisture, suppresses weed growth, and regulates soil temperature.
  7. Pruning: In late winter or early spring, prune back the previous year’s growth to encourage new growth and promote abundant flowering. Remove any dead or weak branches to maintain a healthy and attractive shape.
  8. Fertilizing: Feed ‘Penny Mac’ hydrangea with a balanced, slow-release fertilizer in early spring. Follow the manufacturer’s recommendations for application rates.
  9. Watering Routine: Keep the soil consistently moist, especially during periods of drought or hot weather. A consistent watering routine is essential for healthy growth and optimal flower production.
  10. Protection: In colder climates, provide winter protection by applying a layer of mulch around the base of the plant and covering it with burlap or other protective material to shield it from harsh winter conditions.

‘Penny Mac’ hydrangea, with its breathtaking blooms and easy-care nature, is an enchanting addition to any garden or landscape. By following these planting and care instructions, you can enjoy a thriving and captivating display of floral beauty for years to come.

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