Mid-Atlantic Regional Reports

Plants That Can Anchor a Landscape

When building out the framework of your garden design, start with one of these strong backbone plants

light pink bearded iris
Learn why ‘Beverly Sills’ beats out the bearded iris competition, and discover other anchor plants worthy of prime garden real estate. Photo: Michelle Gervais

While omitting anchor plants won’t cause your garden to up and float away, it can make conceptualizing your design more difficult and lead to a space that lacks good form and structure. This can go unnoticed in the flower-filled growing season, but as winter approaches it can become more and more evident that the “bones” of your garden are minimal. On the other hand, including and repeating one or more anchor plants can ensure your garden has year-round interest and comes together cohesively. Below are some fantastic anchor plants for the Mid-Atlantic, which will all give a boost to your winter landscape without overpowering it during the rest of the year.

Kintzleys Ghost honeysuckle flowers and berries
Kintzley’s Ghost® gets absolutely covered in pale yellow flowers for pollinators in spring, and bright red berries follow for local birds to enjoy. Photos: Jack Coyier

Kintzley’s Ghost® honeysuckle

Lonicera reticulata ‘P015S’

Zones: 4–8

Size: 6 to 12 feet tall and 3 to 6 feet wide

Conditions: Full sun to partial shade; average to dry, well-drained soil

Native range: Midwestern, mid-Atlantic, and southeastern United States

A common plant ID question I’m frequently asked is: “Is that a vining eucalyptus (Eucalyptus spp. and cvs., Zones 7–11) plant?” No, it’s not. But it is a wonderful native honeysuckle! With blue-green, circular foliage that looks like oxidized copper coins, Kintzley’s Ghost® honeysuckle is a real conversation piece. In addition to the noteworthy foliage, this robust woody vine is very drought tolerant when established and easy to prune and maintain. Pale yellow blooms emerge in spring that provide a good food source for insects. Following these flowers, red, showy fruit emerges for birds to enjoy. Ideally, you should provide a durable support for this twining vine that it can twist around. But it can be grown without a support, in which case it will take a form similar to a wide, mounded shrub.

Willow oak
If your space allows, planting an oak is the quickest route to the largest environmental impact in the garden. Willow oak is a fabulous option, with small leaves that make fall cleanup much easier. Photo: Daderot, CC0, via Wikimedia Commons

Willow oak

Quercus phellos

Zones: 6–9

Size: 40 to 100 feet tall and 30 to 50 feet wide

Conditions: Full sun; consistently moist to well-drained soil

Native range: Mid-Atlantic and southeastern United States

Every time someone asks me what the first (or only) plant is you should add to a landscape, I always say to plant an oak. There are few other trees that can support as many species of insects and other wildlife as oak trees. Willow oak is one of my favorites because of its graceful, airy form. It makes a wonderful light shade tree, with plentiful branches that get very thin toward the tips, creating a fine-textured outline that looks like a pencil drawing. The Kelly green foliage is small and lance shaped, taking on warmer colors in autumn. The dainty leaves make fall cleanup easier too. Willow oak acorns are tiny and cute, only a half-inch across or less. Willow oaks are pyramidal when young, becoming broadly oval in maturity.

Beverly Sills bearded iris
The beautifully peachy blooms of ‘Beverly Sills’ are undeniably show-stopping, but the sword-like foliage provides a strong architectural element for your garden year-round. Photo: Michelle Gervais

‘Beverly Sills’ bearded iris

Iris ‘Beverly Sills’

Zones: 3–9

Size: 2 to 3 feet tall and 1½ to 2 feet wide

Conditions: Full sun to partial shade; well-drained soil

Native range: Hybrid

This plant was introduced to me as a division from a friend, which they received as a division from a friend. ‘Beverly Sills’ remains one of my favorite bearded irises for its vigor and reliable late-spring flowers. These blooms have vibrant coral pink to apricot petals, with a tangerine beard on the falls. The stately, architectural foliage maintains a presence all year round in my Pennsylvania garden. The sword-like foliage creates a sharp vertical contrast with other flowers and shrubs throughout the season. Drought tolerant once established, bearded irises are tolerant of most garden soils, but well-drained sites are preferable for the rhizomes that grow close to the soil surface. Over time the plants can form large clumps to make even bigger statements, but lifting and dividing clumps every few years keeps them vigorous and less congested.

golf-leaf mock orange
If you’re looking to start your garden with multiseason interest and intoxicating fragrance, gold-leaf mock orange is a no-brainer. Photo: Daryl Beyers

Gold-leaf mock orange

Philadelphus coronarius  ‘Aureus’

Zones: 4–9

Size: 6 to 8 feet tall and 3 to 6 feet wide

Conditions: Full sun to partial shade; well-drained soil

Native range: Southeastern Europe and southwestern Asia

When in bloom, you may smell mock oranges before you see them. Gold-leaf mock orange provides the same experience, but with brilliantly chartreuse foliage that shines over other plants in the landscape. Graceful, arching branches form simple, four-petaled, white flowers along the branches. The sweet orange-blossom fragrance perfumes the air in late spring, while the vibrant colored foliage holds its own throughout the whole growing season. This shrub will illuminate a bed when paired next to purples and dark greens or add excitement next to reds and oranges. Prune out older branches in winter to improve flowering, vigor, and form. The foliage color will be better with more sun. Arching branches of gold-leaf mock orange make a great addition to floral arrangements and are easy to cut any time of the year.

 

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To discuss these plants or ask other gardening questions, chat with the author on the Gardening Answers forum.

 

Find more amazing anchor plants:

 


 

David Mattern is a horticulturist at Chanticleer, a public garden In Wayne, Pennsylvania. He documents his garden journey on Instagram @matternii.

 

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