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Ilex glabra
gallberry
Ilex glabra
Ilex glabra, commonly known as Inkberry, is an evergreen shrub native to eastern North America. It is known for its dark green, glossy leaves and black, berry-like fruits. It's a versatile plant that can tolerate a range of soil conditions and is often used in landscaping for hedges, borders, or as a foundation plant. It provides valuable habitat and food for wildlife.
CategoryDetails
Plant TypePerennial plant
Estimated Plant Lifespan50 years lifespan
Toxic to humansToxic to humans
ToxicityToxic to: Dogs, Cats, Horses
Sun Requirements4-6 hours direct sunlight (Partial Sun)
Pollination

Method: Insect

Notes: Primarily pollinated by bees and other insects. Planting a variety of flowering plants nearby can attract more pollinators and improve fruit set.

Watering Requirements

Method: Top water

Frequency: Water regularly, especially during dry periods. Established plants are moderately drought-tolerant.

Notes: Avoid overwatering, as this can lead to root rot. Ensure good drainage.

Humidity Requirements

Level: Moderate

Care InstructionsPrune in late winter or early spring to remove dead or damaged branches and to maintain shape. Mulch around the base of the plant to conserve moisture and suppress weeds.
Temperature Range

Min: -29°C

Max: 35°C

Alternative Namesinkberry, ink berry
Rhododendron maximum
great rhododendron
Rhododendron maximum
Both prefer similar acidic soil conditions and partial shade, creating a harmonious woodland garden.
Vaccinium corymbosum
Northern highbush blueberry
Vaccinium corymbosum
Blueberries share similar soil pH preferences with Inkberry, and Inkberry provides wind protection for the blueberry bushes.
Acer rubrum
red maple
Acer rubrum

Red maples can outcompete Ilex glabra for resources, especially sunlight and water, due to their faster growth rate and larger size. This is especially true in less acidic soil.

Liriodendron tulipifera
tulip tree
Liriodendron tulipifera

Tulip Poplars grow very tall and quickly, potentially shading out Ilex glabra and reducing its access to sunlight. They also compete for soil nutrients.

Spider Mites

Spider mites are tiny pests that suck sap from the leaves, causing stippling, yellowing, and webbing. Severe infestations can weaken the plant. Check undersides of leaves regularly.

Leaf Miners

Leaf miners tunnel inside the leaves, creating visible trails or blotches. While not usually fatal, they can disfigure the foliage and weaken the plant. Look for squiggly lines or blisters on the leaves.

Scale

Scale insects attach themselves to stems and leaves, sucking sap and weakening the plant. They appear as small, immobile bumps and can cause yellowing leaves and stunted growth.

Steps:

    • Take 4-6 inch semi-hardwood cuttings in late summer or early fall from healthy, disease-free plants.
    • Remove the lower leaves, leaving only a few at the top.
    • Dip the cut end in rooting hormone.
    • Plant the cuttings in a well-draining rooting medium, such as a mix of perlite and peat moss.
    • Keep the cuttings moist and humid by covering them with a plastic dome or bag.
    • Place in a shaded location.
    • Roots should develop in a few weeks. After rooting, transplant into individual pots and gradually acclimate to outdoor conditions before planting in the ground.

Neem Oil

Effective against spider mites and scale. Can be used as a preventative measure.

Insecticidal Soap

Controls spider mites, aphids, and other soft-bodied insects. Use according to label directions.

Mycorrhizae

Helps establish a strong root system, improving nutrient and water uptake, benefiting overall plant health.

Acid-Loving Fertilizer

Promotes healthy growth and flowering, specifically formulated for plants that thrive in acidic soil.